632479864 has 16 divisors (see below), whose sum is σ = 1187046000. Its totient is φ = 315934272.

The previous prime is 632479789. The next prime is 632479873. The reversal of 632479864 is 468974236.

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, 29292 + ... + 46075.

It is an arithmetic number, because the mean of its divisors is an integer number (74190375).

Almost surely, 2^632479864 is an apocalyptic number.

It is an amenable number.

632479864 is a deficient number, since it is larger than the sum of its proper divisors (554566136).

632479864 is a wasteful number, since it uses less digits than its factorization.

632479864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76422 (or 76418 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 49.

The square root of 632479864 is about 25149.1523515207. The cubic root of 632479864 is about 858.3852266444.

The spelling of 632479864 in words is "six hundred thirty-two million, four hundred seventy-nine thousand, eight hundred sixty-four".