630653764 has 12 divisors (see below), whose sum is σ = 1188539884. Its totient is φ = 291070944.

The previous prime is 630653747. The next prime is 630653783. The reversal of 630653764 is 467356036.

It can be written as a sum of positive squares in 2 ways, for example, as 25100100 + 605553664 = 5010^2 + 24608^2 .

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

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, 6063927 + ... + 6064030.

Almost surely, 2^630653764 is an apocalyptic number.

It is an amenable number.

630653764 is a deficient number, since it is larger than the sum of its proper divisors (557886120).

630653764 is a wasteful number, since it uses less digits than its factorization.

630653764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12127974 (or 12127972 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 40.

The square root of 630653764 is about 25112.8207097490. The cubic root of 630653764 is about 857.5583185014.

The spelling of 630653764 in words is "six hundred thirty million, six hundred fifty-three thousand, seven hundred sixty-four".