447868431 has 12 divisors (see below), whose sum is σ = 669229080. Its totient is φ = 288282960.

The previous prime is 447868429. The next prime is 447868483. The reversal of 447868431 is 134868744.

It is not a de Polignac number, because 447868431 - 2¹ = 447868429 is a prime.

It is a super-2 number, since 2×447868431² = 401172262972803522, which contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447868331) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 857725 + ... + 858246.

It is an arithmetic number, because the mean of its divisors is an integer number (55769090).

Almost surely, 2^447868431 is an apocalyptic number.

447868431 is a deficient number, since it is larger than the sum of its proper divisors (221360649).

447868431 is a wasteful number, since it uses less digits than its factorization.

447868431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1716006 (or 1716003 counting only the distinct ones).

The product of its digits is 516096, while the sum is 45.

The square root of 447868431 is about 21162.9022348070. The cubic root of 447868431 is about 765.0975602861.

The spelling of 447868431 in words is "four hundred forty-seven million, eight hundred sixty-eight thousand, four hundred thirty-one".