623773564 has 6 divisors (see below), whose sum is σ = 1091603744. Its totient is φ = 311886780.

The previous prime is 623773531. The next prime is 623773597. The reversal of 623773564 is 465377326.

623773564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (623773531) and next prime (623773597).

It is a self number, because there is not a number n which added to its sum of digits gives 623773564.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77971692 + ... + 77971699.

Almost surely, 2^623773564 is an apocalyptic number.

It is an amenable number.

623773564 is a deficient number, since it is larger than the sum of its proper divisors (467830180).

623773564 is a wasteful number, since it uses less digits than its factorization.

623773564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155943395 (or 155943393 counting only the distinct ones).

The product of its digits is 635040, while the sum is 43.

The square root of 623773564 is about 24975.4592350171. The cubic root of 623773564 is about 854.4283601867.

The spelling of 623773564 in words is "six hundred twenty-three million, seven hundred seventy-three thousand, five hundred sixty-four".