634854994 has 4 divisors (see below), whose sum is σ = 952282494. Its totient is φ = 317427496.

The previous prime is 634854989. The next prime is 634855003. The reversal of 634854994 is 499458436.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 427869225 + 206985769 = 20685^2 + 14387^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158713747 + ... + 158713750.

Almost surely, 2^634854994 is an apocalyptic number.

634854994 is a deficient number, since it is larger than the sum of its proper divisors (317427500).

634854994 is a wasteful number, since it uses less digits than its factorization.

634854994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317427499.

The product of its digits is 3732480, while the sum is 52.

The square root of 634854994 is about 25196.3289786429. The cubic root of 634854994 is about 859.4583726743.

The spelling of 634854994 in words is "six hundred thirty-four million, eight hundred fifty-four thousand, nine hundred ninety-four".