447864660 has 96 divisors (see below), whose sum is σ = 1475349120. Its totient is φ = 112402944.

The previous prime is 447864629. The next prime is 447864691. The reversal of 447864660 is 66468744.

It is an interprime number because it is at equal distance from previous prime (447864629) and next prime (447864691).

It is a Harshad number since it is a multiple of its sum of digits (45).

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 31 ways as a sum of consecutive naturals, for example, 15214 + ... + 33573.

It is an arithmetic number, because the mean of its divisors is an integer number (15368220).

Almost surely, 2^447864660 is an apocalyptic number.

It is an amenable number.

447864660 is an abundant number, since it is smaller than the sum of its proper divisors (1027484460).

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

447864660 is a wasteful number, since it uses less digits than its factorization.

447864660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48822 (or 48814 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 45.

The square root of 447864660 is about 21162.8131400341. The cubic root of 447864660 is about 765.0954129359.

The spelling of 447864660 in words is "four hundred forty-seven million, eight hundred sixty-four thousand, six hundred sixty".