447553972 has 6 divisors (see below), whose sum is σ = 783219458. Its totient is φ = 223776984.

The previous prime is 447553943. The next prime is 447553973. The reversal of 447553972 is 279355744.

It can be written as a sum of positive squares in only one way, i.e., 445800996 + 1752976 = 21114^2 + 1324^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447553973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55944243 + ... + 55944250.

Almost surely, 2^447553972 is an apocalyptic number.

It is an amenable number.

447553972 is a deficient number, since it is larger than the sum of its proper divisors (335665486).

447553972 is a wasteful number, since it uses less digits than its factorization.

447553972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111888497 (or 111888495 counting only the distinct ones).

The product of its digits is 1058400, while the sum is 46.

The square root of 447553972 is about 21155.4714435770. The cubic root of 447553972 is about 764.9184540074.

The spelling of 447553972 in words is "four hundred forty-seven million, five hundred fifty-three thousand, nine hundred seventy-two".