623994364 has 24 divisors (see below), whose sum is σ = 1265088608. Its totient is φ = 263761920.

The previous prime is 623994359. The next prime is 623994379. The reversal of 623994364 is 463499326.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150597 + ... + 154684.

Almost surely, 2^623994364 is an apocalyptic number.

It is an amenable number.

623994364 is an abundant number, since it is smaller than the sum of its proper divisors (641094244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

623994364 is a wasteful number, since it uses less digits than its factorization.

623994364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305365 (or 305363 counting only the distinct ones).

The product of its digits is 839808, while the sum is 46.

The square root of 623994364 is about 24979.8791830545. The cubic root of 623994364 is about 854.5291636070.

The spelling of 623994364 in words is "six hundred twenty-three million, nine hundred ninety-four thousand, three hundred sixty-four".