447473431 has 2 divisors, whose sum is σ = 447473432. Its totient is φ = 447473430.

The previous prime is 447473419. The next prime is 447473479. The reversal of 447473431 is 134374744.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 447473431 - 2⁹ = 447472919 is a prime.

It is a super-2 number, since 2×447473431² = 400464942901823522, which contains 22 as substring.

It is equal to p_23726197 and since 447473431 and 23726197 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (447573431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 223736715 + 223736716.

It is an arithmetic number, because the mean of its divisors is an integer number (223736716).

Almost surely, 2^447473431 is an apocalyptic number.

447473431 is a deficient number, since it is larger than the sum of its proper divisors (1).

447473431 is an equidigital number, since it uses as much as digits as its factorization.

447473431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 112896, while the sum is 37.

The square root of 447473431 is about 21153.5678078191. The cubic root of 447473431 is about 764.8725668094.

The spelling of 447473431 in words is "four hundred forty-seven million, four hundred seventy-three thousand, four hundred thirty-one".