634920346 has 4 divisors (see below), whose sum is σ = 952380522. Its totient is φ = 317460172.

The previous prime is 634920329. The next prime is 634920353. The reversal of 634920346 is 643029436.

634920346 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 618069321 + 16851025 = 24861^2 + 4105^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158730085 + ... + 158730088.

Almost surely, 2^634920346 is an apocalyptic number.

634920346 is a deficient number, since it is larger than the sum of its proper divisors (317460176).

634920346 is a wasteful number, since it uses less digits than its factorization.

634920346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317460175.

The product of its (nonzero) digits is 93312, while the sum is 37.

The square root of 634920346 is about 25197.6258008567. The cubic root of 634920346 is about 859.4878625562.

The spelling of 634920346 in words is "six hundred thirty-four million, nine hundred twenty thousand, three hundred forty-six".