634662164 has 12 divisors (see below), whose sum is σ = 1110835488. Its totient is φ = 317280600.

The previous prime is 634662151. The next prime is 634662199. The reversal of 634662164 is 461266436.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 40619 + ... + 54029.

It is an arithmetic number, because the mean of its divisors is an integer number (92569624).

Almost surely, 2^634662164 is an apocalyptic number.

It is an amenable number.

634662164 is a deficient number, since it is larger than the sum of its proper divisors (476173324).

634662164 is a wasteful number, since it uses less digits than its factorization.

634662164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25246 (or 25244 counting only the distinct ones).

The product of its digits is 124416, while the sum is 38.

The square root of 634662164 is about 25192.5021385332. The cubic root of 634662164 is about 859.3713469535.

The spelling of 634662164 in words is "six hundred thirty-four million, six hundred sixty-two thousand, one hundred sixty-four".