633878632 has 8 divisors (see below), whose sum is σ = 1188522450. Its totient is φ = 316939312.

The previous prime is 633878629. The next prime is 633878647. The reversal of 633878632 is 236878336.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 584962596 + 48916036 = 24186^2 + 6994^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39617407 + ... + 39617422.

Almost surely, 2^633878632 is an apocalyptic number.

It is an amenable number.

633878632 is a deficient number, since it is larger than the sum of its proper divisors (554643818).

633878632 is a wasteful number, since it uses less digits than its factorization.

633878632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79234835 (or 79234831 counting only the distinct ones).

The product of its digits is 870912, while the sum is 46.

The square root of 633878632 is about 25176.9464391534. The cubic root of 633878632 is about 859.0175512520.

The spelling of 633878632 in words is "six hundred thirty-three million, eight hundred seventy-eight thousand, six hundred thirty-two".