447561364 has 12 divisors (see below), whose sum is σ = 783452404. Its totient is φ = 223717824.

The previous prime is 447561343. The next prime is 447561377. The reversal of 447561364 is 463165744.

It can be written as a sum of positive squares in 2 ways, for example, as 320052100 + 127509264 = 17890^2 + 11292^2 .

It is a super-2 number, since 2×447561364² = 400622349091080992, which contains 22 as substring.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2704 + ... + 30040.

Almost surely, 2^447561364 is an apocalyptic number.

It is an amenable number.

447561364 is a deficient number, since it is larger than the sum of its proper divisors (335891040).

447561364 is a wasteful number, since it uses less digits than its factorization.

447561364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31434 (or 31432 counting only the distinct ones).

The product of its digits is 241920, while the sum is 40.

The square root of 447561364 is about 21155.6461494325. The cubic root of 447561364 is about 764.9226652284.

The spelling of 447561364 in words is "four hundred forty-seven million, five hundred sixty-one thousand, three hundred sixty-four".