627666057 has 16 divisors (see below), whose sum is σ = 942975360. Its totient is φ = 412549200.

The previous prime is 627666043. The next prime is 627666077. The reversal of 627666057 is 750666726.

It is not a de Polignac number, because 627666057 - 2⁴ = 627666041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (627666077) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161794 + ... + 165627.

It is an arithmetic number, because the mean of its divisors is an integer number (58935960).

Almost surely, 2^627666057 is an apocalyptic number.

It is an amenable number.

627666057 is a deficient number, since it is larger than the sum of its proper divisors (315309303).

627666057 is a wasteful number, since it uses less digits than its factorization.

627666057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327501 (or 327495 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 45.

The square root of 627666057 is about 25053.2643980779. The cubic root of 627666057 is about 856.2019537073.

The spelling of 627666057 in words is "six hundred twenty-seven million, six hundred sixty-six thousand, fifty-seven".