627668560 has 40 divisors (see below), whose sum is σ = 1545175656. Its totient is φ = 236298240.

The previous prime is 627668533. The next prime is 627668567. The reversal of 627668560 is 65866726.

It can be written as a sum of positive squares in 4 ways, for example, as 213627456 + 414041104 = 14616^2 + 20348^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 627668560.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (627668567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229401 + ... + 232120.

Almost surely, 2^627668560 is an apocalyptic number.

It is an amenable number.

627668560 is an abundant number, since it is smaller than the sum of its proper divisors (917507096).

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

627668560 is a wasteful number, since it uses less digits than its factorization.

627668560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461551 (or 461545 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 46.

The square root of 627668560 is about 25053.3143515983. The cubic root of 627668560 is about 856.2030918235.

The spelling of 627668560 in words is "six hundred twenty-seven million, six hundred sixty-eight thousand, five hundred sixty".