634850644 has 12 divisors (see below), whose sum is σ = 1122442804. Its totient is φ = 314152704.

The previous prime is 634850639. The next prime is 634850663. The reversal of 634850644 is 446058436.

634850644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 179881744 + 454968900 = 13412^2 + 21330^2 .

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 634850597 and 634850606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 817719 + ... + 818494.

Almost surely, 2^634850644 is an apocalyptic number.

It is an amenable number.

634850644 is a deficient number, since it is larger than the sum of its proper divisors (487592160).

634850644 is a wasteful number, since it uses less digits than its factorization.

634850644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1636314 (or 1636312 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 40.

The square root of 634850644 is about 25196.2426563962. The cubic root of 634850644 is about 859.4564096788.

The spelling of 634850644 in words is "six hundred thirty-four million, eight hundred fifty thousand, six hundred forty-four".