628555952 has 10 divisors (see below), whose sum is σ = 1217827188. Its totient is φ = 314277968.

The previous prime is 628555931. The next prime is 628555987. The reversal of 628555952 is 259555826.

It is a junction number, because it is equal to n+sod(n) for n = 628555897 and 628555906.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19642358 + ... + 19642389.

Almost surely, 2^628555952 is an apocalyptic number.

It is an amenable number.

628555952 is a deficient number, since it is larger than the sum of its proper divisors (589271236).

628555952 is a wasteful number, since it uses less digits than its factorization.

628555952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39284755 (or 39284749 counting only the distinct ones).

The product of its digits is 1080000, while the sum is 47.

The square root of 628555952 is about 25071.0181683952. The cubic root of 628555952 is about 856.6063991543.

The spelling of 628555952 in words is "six hundred twenty-eight million, five hundred fifty-five thousand, nine hundred fifty-two".