628923712 has 28 divisors (see below), whose sum is σ = 1313708320. Its totient is φ = 297910656.

The previous prime is 628923683. The next prime is 628923767. The reversal of 628923712 is 217329826.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 257388 + ... + 259819.

Almost surely, 2^628923712 is an apocalyptic number.

It is an amenable number.

628923712 is an abundant number, since it is smaller than the sum of its proper divisors (684784608).

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

628923712 is a wasteful number, since it uses less digits than its factorization.

628923712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517238 (or 517228 counting only the distinct ones).

The product of its digits is 72576, while the sum is 40.

The square root of 628923712 is about 25078.3514609713. The cubic root of 628923712 is about 856.7734297102.

The spelling of 628923712 in words is "six hundred twenty-eight million, nine hundred twenty-three thousand, seven hundred twelve".