634904339 has 4 divisors (see below), whose sum is σ = 634956600. Its totient is φ = 634852080.

The previous prime is 634904327. The next prime is 634904353. The reversal of 634904339 is 933409436.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-634904339 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 634904296 and 634904305.

It is not an unprimeable number, because it can be changed into a prime (634904359) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2687 + ... + 35735.

It is an arithmetic number, because the mean of its divisors is an integer number (158739150).

Almost surely, 2^634904339 is an apocalyptic number.

634904339 is a deficient number, since it is larger than the sum of its proper divisors (52261).

634904339 is a wasteful number, since it uses less digits than its factorization.

634904339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52260.

The product of its (nonzero) digits is 209952, while the sum is 41.

The square root of 634904339 is about 25197.3081697232. The cubic root of 634904339 is about 859.4806396355.

The spelling of 634904339 in words is "six hundred thirty-four million, nine hundred four thousand, three hundred thirty-nine".