634802313 has 4 divisors (see below), whose sum is σ = 846403088. Its totient is φ = 423201540.

The previous prime is 634802309. The next prime is 634802347. The reversal of 634802313 is 313208436.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 634802313 - 2² = 634802309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (634802513) by changing a digit.

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, 105800383 + ... + 105800388.

It is an arithmetic number, because the mean of its divisors is an integer number (211600772).

Almost surely, 2^634802313 is an apocalyptic number.

It is an amenable number.

634802313 is a deficient number, since it is larger than the sum of its proper divisors (211600775).

634802313 is a wasteful number, since it uses less digits than its factorization.

634802313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211600774.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 634802313 is about 25195.2835467276. The cubic root of 634802313 is about 859.4345990675.

The spelling of 634802313 in words is "six hundred thirty-four million, eight hundred two thousand, three hundred thirteen".