623473 has 4 divisors (see below), whose sum is σ = 629748. Its totient is φ = 617200.

The previous prime is 623437. The next prime is 623477. The reversal of 623473 is 374326.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 374326 = 2 ⋅187163.

It can be written as a sum of positive squares in 2 ways, for example, as 277729 + 345744 = 527^2 + 588^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-623473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (623477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2986 + ... + 3187.

It is an arithmetic number, because the mean of its divisors is an integer number (157437).

2⁶²³⁴⁷³ is an apocalyptic number.

It is an amenable number.

623473 is a deficient number, since it is larger than the sum of its proper divisors (6275).

623473 is a wasteful number, since it uses less digits than its factorization.

623473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6274.

The product of its digits is 3024, while the sum is 25.

The square root of 623473 is about 789.6030648370. The cubic root of 623473 is about 85.4291103293.

Adding to 623473 its reverse (374326), we get a palindrome (997799).

The spelling of 623473 in words is "six hundred twenty-three thousand, four hundred seventy-three".