627949904 has 10 divisors (see below), whose sum is σ = 1216652970. Its totient is φ = 313974944.

The previous prime is 627949901. The next prime is 627949951. The reversal of 627949904 is 409949726.

It can be written as a sum of positive squares in only one way, i.e., 627402304 + 547600 = 25048^2 + 740^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (627949901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19623419 + ... + 19623450.

It is an arithmetic number, because the mean of its divisors is an integer number (121665297).

Almost surely, 2^627949904 is an apocalyptic number.

It is an amenable number.

627949904 is a deficient number, since it is larger than the sum of its proper divisors (588703066).

627949904 is a wasteful number, since it uses less digits than its factorization.

627949904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39246877 (or 39246871 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 50.

The square root of 627949904 is about 25058.9286283353. The cubic root of 627949904 is about 856.3309998923.

The spelling of 627949904 in words is "six hundred twenty-seven million, nine hundred forty-nine thousand, nine hundred four".