633768976 has 40 divisors (see below), whose sum is σ = 1305478944. Its totient is φ = 297024000.

The previous prime is 633768943. The next prime is 633768977. The reversal of 633768976 is 679867336.

It is a super-2 number, since 2×633768976² = 803326229880177152, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (633768977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63631 + ... + 72913.

Almost surely, 2^633768976 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 633768976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (652739472).

633768976 is an abundant number, since it is smaller than the sum of its proper divisors (671709968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

633768976 is a wasteful number, since it uses less digits than its factorization.

633768976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9559 (or 9553 counting only the distinct ones).

The product of its digits is 6858432, while the sum is 55.

The square root of 633768976 is about 25174.7686384602. The cubic root of 633768976 is about 858.9680139767.

The spelling of 633768976 in words is "six hundred thirty-three million, seven hundred sixty-eight thousand, nine hundred seventy-six".