447397902 has 48 divisors (see below), whose sum is σ = 1166156160. Its totient is φ = 121099536.

The previous prime is 447397901. The next prime is 447397913. The reversal of 447397902 is 209793744.

447397902 is a `hidden beast` number, since 4 + 473 + 97 + 90 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447397901) 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, 91048 + ... + 95835.

It is an arithmetic number, because the mean of its divisors is an integer number (24294920).

Almost surely, 2^447397902 is an apocalyptic number.

447397902 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

447397902 is an abundant number, since it is smaller than the sum of its proper divisors (718758258).

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

447397902 is a wasteful number, since it uses less digits than its factorization.

447397902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186917 (or 186914 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The square root of 447397902 is about 21151.7824780797. The cubic root of 447397902 is about 764.8295301308.

The spelling of 447397902 in words is "four hundred forty-seven million, three hundred ninety-seven thousand, nine hundred two".