623597 has 4 divisors (see below), whose sum is σ = 671580. Its totient is φ = 575616.

The previous prime is 623591. The next prime is 623617. The reversal of 623597 is 795326.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 276676 + 346921 = 526^2 + 589^2 .

It is a cyclic number.

It is not a de Polignac number, because 623597 - 2⁸ = 623341 is a prime.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23972 + ... + 23997.

It is an arithmetic number, because the mean of its divisors is an integer number (167895).

2⁶²³⁵⁹⁷ is an apocalyptic number.

It is an amenable number.

623597 is a deficient number, since it is larger than the sum of its proper divisors (47983).

623597 is a wasteful number, since it uses less digits than its factorization.

623597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47982.

The product of its digits is 11340, while the sum is 32.

The square root of 623597 is about 789.6815813985. The cubic root of 623597 is about 85.4347735029.

The spelling of 623597 in words is "six hundred twenty-three thousand, five hundred ninety-seven".