627768164 has 12 divisors (see below), whose sum is σ = 1146359424. Its totient is φ = 300236904.

The previous prime is 627768161. The next prime is 627768181. The reversal of 627768164 is 461867726.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (627768161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3411692 + ... + 3411875.

It is an arithmetic number, because the mean of its divisors is an integer number (95529952).

Almost surely, 2^627768164 is an apocalyptic number.

It is an amenable number.

627768164 is a deficient number, since it is larger than the sum of its proper divisors (518591260).

627768164 is a wasteful number, since it uses less digits than its factorization.

627768164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6823594 (or 6823592 counting only the distinct ones).

The product of its digits is 677376, while the sum is 47.

The square root of 627768164 is about 25055.3021135248. The cubic root of 627768164 is about 856.2483793885.

The spelling of 627768164 in words is "six hundred twenty-seven million, seven hundred sixty-eight thousand, one hundred sixty-four".