447989031 has 24 divisors (see below), whose sum is σ = 740754560. Its totient is φ = 255572496.

The previous prime is 447989021. The next prime is 447989051. The reversal of 447989031 is 130989744.

447989031 is a `hidden beast` number, since 447 + 98 + 90 + 31 = 666.

It is not a de Polignac number, because 447989031 - 2⁷ = 447988903 is a prime.

It is a super-2 number, since 2×447989031² = 401388343792637922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447989021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34980 + ... + 46038.

Almost surely, 2^447989031 is an apocalyptic number.

447989031 is a deficient number, since it is larger than the sum of its proper divisors (292765529).

447989031 is a wasteful number, since it uses less digits than its factorization.

447989031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11715 (or 11712 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 447989031 is about 21165.7513686616. The cubic root of 447989031 is about 765.1662281347.

The spelling of 447989031 in words is "four hundred forty-seven million, nine hundred eighty-nine thousand, thirty-one".