627245664 has 24 divisors (see below), whose sum is σ = 1646520120. Its totient is φ = 209081856.

The previous prime is 627245657. The next prime is 627245743. The reversal of 627245664 is 466542726.

It is a tau number, because it is divible by the number of its divisors (24).

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, 3266809 + ... + 3267000.

It is an arithmetic number, because the mean of its divisors is an integer number (68605005).

Almost surely, 2^627245664 is an apocalyptic number.

It is an amenable number.

627245664 is an abundant number, since it is smaller than the sum of its proper divisors (1019274456).

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

627245664 is a wasteful number, since it uses less digits than its factorization.

627245664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6533822 (or 6533814 counting only the distinct ones).

The product of its digits is 483840, while the sum is 42.

The square root of 627245664 is about 25044.8730082626. The cubic root of 627245664 is about 856.0107577185.

The spelling of 627245664 in words is "six hundred twenty-seven million, two hundred forty-five thousand, six hundred sixty-four".