634965076 has 12 divisors (see below), whose sum is σ = 1115959572. Its totient is φ = 316119488.

The previous prime is 634965061. The next prime is 634965101. The reversal of 634965076 is 670569436.

634965076 = T₂₀₅₇₃ + T₂₀₅₇₄ + T₂₀₅₇₅.

It can be written as a sum of positive squares in 2 ways, for example, as 86936976 + 548028100 = 9324^2 + 23410^2 .

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

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, 339715 + ... + 341578.

It is an arithmetic number, because the mean of its divisors is an integer number (92996631).

Almost surely, 2^634965076 is an apocalyptic number.

634965076 is the 20575-th centered triangular number.

It is an amenable number.

634965076 is a deficient number, since it is larger than the sum of its proper divisors (480994496).

634965076 is a wasteful number, since it uses less digits than its factorization.

634965076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681530 (or 681528 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 46.

The square root of 634965076 is about 25198.5133688478. The cubic root of 634965076 is about 859.5080456598.

The spelling of 634965076 in words is "six hundred thirty-four million, nine hundred sixty-five thousand, seventy-six".