627397864 has 64 divisors (see below), whose sum is σ = 1265932800. Its totient is φ = 290786496.

The previous prime is 627397831. The next prime is 627397889. The reversal of 627397864 is 468793726.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1416027 + ... + 1416469.

It is an arithmetic number, because the mean of its divisors is an integer number (19780200).

Almost surely, 2^627397864 is an apocalyptic number.

It is an amenable number.

627397864 is an abundant number, since it is smaller than the sum of its proper divisors (638534936).

627397864 is a wasteful number, since it uses less digits than its factorization.

627397864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694 (or 690 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 52.

The square root of 627397864 is about 25047.9113700125. The cubic root of 627397864 is about 856.0799885948.

The spelling of 627397864 in words is "six hundred twenty-seven million, three hundred ninety-seven thousand, eight hundred sixty-four".