447790986 has 12 divisors (see below), whose sum is σ = 970213842. Its totient is φ = 149263656.

The previous prime is 447790969. The next prime is 447790991. The reversal of 447790986 is 689097744.

It is a happy number.

447790986 is a `hidden beast` number, since 4 + 477 + 90 + 9 + 86 = 666.

It can be written as a sum of positive squares in only one way, i.e., 305585361 + 142205625 = 17481^2 + 11925^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12438621 + ... + 12438656.

Almost surely, 2^447790986 is an apocalyptic number.

447790986 is an abundant number, since it is smaller than the sum of its proper divisors (522422856).

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

447790986 is a wasteful number, since it uses less digits than its factorization.

447790986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24877285 (or 24877282 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 54.

The square root of 447790986 is about 21161.0724208392. The cubic root of 447790986 is about 765.0534577535.

The spelling of 447790986 in words is "four hundred forty-seven million, seven hundred ninety thousand, nine hundred eighty-six".