461991976 has 8 divisors (see below), whose sum is σ = 866234970. Its totient is φ = 230995984.

The previous prime is 461991967. The next prime is 461992021. The reversal of 461991976 is 679199164.

It can be written as a sum of positive squares in only one way, i.e., 258244900 + 203747076 = 16070^2 + 14274^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28874491 + ... + 28874506.

Almost surely, 2^461991976 is an apocalyptic number.

It is an amenable number.

461991976 is a deficient number, since it is larger than the sum of its proper divisors (404242994).

461991976 is a wasteful number, since it uses less digits than its factorization.

461991976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57749003 (or 57748999 counting only the distinct ones).

The product of its digits is 734832, while the sum is 52.

The square root of 461991976 is about 21493.9986042616. The cubic root of 461991976 is about 773.0569297244.

The spelling of 461991976 in words is "four hundred sixty-one million, nine hundred ninety-one thousand, nine hundred seventy-six".