632767864 has 16 divisors (see below), whose sum is σ = 1193070600. Its totient is φ = 314615712.

The previous prime is 632767853. The next prime is 632767867. The reversal of 632767864 is 468767236.

It is a super-2 number, since 2×632767864² = 800790339422244992, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (632767867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 219507 + ... + 222370.

Almost surely, 2^632767864 is an apocalyptic number.

It is an amenable number.

632767864 is a deficient number, since it is larger than the sum of its proper divisors (560302736).

632767864 is a wasteful number, since it uses less digits than its factorization.

632767864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442062 (or 442058 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 49.

The square root of 632767864 is about 25154.8775389585. The cubic root of 632767864 is about 858.5154955777.

The spelling of 632767864 in words is "six hundred thirty-two million, seven hundred sixty-seven thousand, eight hundred sixty-four".