623404325 has 24 divisors (see below), whose sum is σ = 804487200. Its totient is φ = 478820160.

The previous prime is 623404321. The next prime is 623404337. The reversal of 623404325 is 523404326.

It is not a de Polignac number, because 623404325 - 2² = 623404321 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623404321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58511 + ... + 68339.

It is an arithmetic number, because the mean of its divisors is an integer number (33520300).

Almost surely, 2^623404325 is an apocalyptic number.

It is an amenable number.

623404325 is a deficient number, since it is larger than the sum of its proper divisors (181082875).

623404325 is a wasteful number, since it uses less digits than its factorization.

623404325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9941 (or 9936 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 29.

The square root of 623404325 is about 24968.0661045264. The cubic root of 623404325 is about 854.2597356716.

Subtracting from 623404325 its reverse (523404326), we obtain a palindrome (99999999).

The spelling of 623404325 in words is "six hundred twenty-three million, four hundred four thousand, three hundred twenty-five".