623557103 has 12 divisors (see below), whose sum is σ = 679771800. Its totient is φ = 571705056.

The previous prime is 623557097. The next prime is 623557169. The reversal of 623557103 is 301755326.

It is not a de Polignac number, because 623557103 - 2⁴ = 623557087 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 623557103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623557303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12800 + ... + 37562.

It is an arithmetic number, because the mean of its divisors is an integer number (56647650).

Almost surely, 2^623557103 is an apocalyptic number.

623557103 is a deficient number, since it is larger than the sum of its proper divisors (56214697).

623557103 is a wasteful number, since it uses less digits than its factorization.

623557103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24938 (or 24925 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 32.

The square root of 623557103 is about 24971.1253851323. The cubic root of 623557103 is about 854.3295145875.

The spelling of 623557103 in words is "six hundred twenty-three million, five hundred fifty-seven thousand, one hundred three".