632879666 has 8 divisors (see below), whose sum is σ = 965409840. Its totient is φ = 311076388.

The previous prime is 632879659. The next prime is 632879671. The reversal of 632879666 is 666978236.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 2681576 + ... + 2681811.

It is an arithmetic number, because the mean of its divisors is an integer number (120676230).

Almost surely, 2^632879666 is an apocalyptic number.

632879666 is a deficient number, since it is larger than the sum of its proper divisors (332530174).

632879666 is a wasteful number, since it uses less digits than its factorization.

632879666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5363448.

The product of its digits is 3919104, while the sum is 53.

The square root of 632879666 is about 25157.0997135997. The cubic root of 632879666 is about 858.5660555078.

The spelling of 632879666 in words is "six hundred thirty-two million, eight hundred seventy-nine thousand, six hundred sixty-six".