634777074 has 20 divisors (see below), whose sum is σ = 1422371214. Its totient is φ = 211592304.

The previous prime is 634777067. The next prime is 634777109. The reversal of 634777074 is 470777436.

634777074 is a `hidden beast` number, since 634 + 7 + 7 + 7 + 0 + 7 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 331494849 + 303282225 = 18207^2 + 17415^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1959027 + ... + 1959350.

Almost surely, 2^634777074 is an apocalyptic number.

634777074 is an abundant number, since it is smaller than the sum of its proper divisors (787594140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

634777074 is a wasteful number, since it uses less digits than its factorization.

634777074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3918391 (or 3918382 counting only the distinct ones).

The product of its (nonzero) digits is 691488, while the sum is 45.

The square root of 634777074 is about 25194.7826741967. The cubic root of 634777074 is about 859.4232088773.

The spelling of 634777074 in words is "six hundred thirty-four million, seven hundred seventy-seven thousand, seventy-four".