630564776 has 8 divisors (see below), whose sum is σ = 1182308970. Its totient is φ = 315282384.

The previous prime is 630564763. The next prime is 630564787. The reversal of 630564776 is 677465036.

630564776 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 449016100 + 181548676 = 21190^2 + 13474^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×630564776² = 795223873463860352, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39410291 + ... + 39410306.

Almost surely, 2^630564776 is an apocalyptic number.

It is an amenable number.

630564776 is a deficient number, since it is larger than the sum of its proper divisors (551744194).

630564776 is a wasteful number, since it uses less digits than its factorization.

630564776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78820603 (or 78820599 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 44.

The square root of 630564776 is about 25111.0488829121. The cubic root of 630564776 is about 857.5179815296.

The spelling of 630564776 in words is "six hundred thirty million, five hundred sixty-four thousand, seven hundred seventy-six".