447689976 has 16 divisors (see below), whose sum is σ = 1119225000. Its totient is φ = 149229984.

The previous prime is 447689959. The next prime is 447689987. The reversal of 447689976 is 679986744.

It is a super-2 number, since 2×447689976² = 400852629221761152, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9326851 + ... + 9326898.

Almost surely, 2^447689976 is an apocalyptic number.

It is an amenable number.

447689976 is an abundant number, since it is smaller than the sum of its proper divisors (671535024).

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

447689976 is a wasteful number, since it uses less digits than its factorization.

447689976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18653758 (or 18653754 counting only the distinct ones).

The product of its digits is 18289152, while the sum is 60.

The square root of 447689976 is about 21158.6855924464. The cubic root of 447689976 is about 764.9959280402.

The spelling of 447689976 in words is "four hundred forty-seven million, six hundred eighty-nine thousand, nine hundred seventy-six".