634685476 has 12 divisors (see below), whose sum is σ = 1115468172. Its totient is φ = 315980288.

The previous prime is 634685473. The next prime is 634685477. The reversal of 634685476 is 674586436.

It can be written as a sum of positive squares in 2 ways, for example, as 52911076 + 581774400 = 7274^2 + 24120^2 .

It is not an unprimeable number, because it can be changed into a prime (634685473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 339565 + ... + 341428.

It is an arithmetic number, because the mean of its divisors is an integer number (92955681).

Almost surely, 2^634685476 is an apocalyptic number.

It is an amenable number.

634685476 is a deficient number, since it is larger than the sum of its proper divisors (480782696).

634685476 is a wasteful number, since it uses less digits than its factorization.

634685476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681230 (or 681228 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 49.

The square root of 634685476 is about 25192.9648116295. The cubic root of 634685476 is about 859.3818687821.

The spelling of 634685476 in words is "six hundred thirty-four million, six hundred eighty-five thousand, four hundred seventy-six".