634794536 has 8 divisors (see below), whose sum is σ = 1190239770. Its totient is φ = 317397264.

The previous prime is 634794521. The next prime is 634794553. The reversal of 634794536 is 635497436.

It can be written as a sum of positive squares in only one way, i.e., 622502500 + 12292036 = 24950^2 + 3506^2 .

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

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 as a sum of consecutive naturals, namely, 39674651 + ... + 39674666.

Almost surely, 2^634794536 is an apocalyptic number.

It is an amenable number.

634794536 is a deficient number, since it is larger than the sum of its proper divisors (555445234).

634794536 is a wasteful number, since it uses less digits than its factorization.

634794536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79349323 (or 79349319 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 47.

The square root of 634794536 is about 25195.1292118139. The cubic root of 634794536 is about 859.4310893921.

The spelling of 634794536 in words is "six hundred thirty-four million, seven hundred ninety-four thousand, five hundred thirty-six".