623276617 has 4 divisors (see below), whose sum is σ = 623326996. Its totient is φ = 623226240.

The previous prime is 623276611. The next prime is 623276623. The reversal of 623276617 is 716672326.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 716672326 = 2 ⋅358336163.

It is an interprime number because it is at equal distance from previous prime (623276611) and next prime (623276623).

It can be written as a sum of positive squares in 2 ways, for example, as 21261321 + 602015296 = 4611^2 + 24536^2 .

It is a cyclic number.

It is not a de Polignac number, because 623276617 - 2¹¹ = 623274569 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 623276617.

It is not an unprimeable number, because it can be changed into a prime (623276611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7573 + ... + 36109.

It is an arithmetic number, because the mean of its divisors is an integer number (155831749).

It is a 12372-hyperperfect number.

Almost surely, 2^623276617 is an apocalyptic number.

It is an amenable number.

623276617 is a deficient number, since it is larger than the sum of its proper divisors (50379).

623276617 is a wasteful number, since it uses less digits than its factorization.

623276617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50378.

The product of its digits is 127008, while the sum is 40.

The square root of 623276617 is about 24965.5085467931. The cubic root of 623276617 is about 854.2013983302.

The spelling of 623276617 in words is "six hundred twenty-three million, two hundred seventy-six thousand, six hundred seventeen".