447700431 has 4 divisors (see below), whose sum is σ = 596933912. Its totient is φ = 298466952.

The previous prime is 447700343. The next prime is 447700501. The reversal of 447700431 is 134007744.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 447700431 - 2⁹ = 447699919 is a prime.

It is a super-2 number, since 2×447700431² = 400871351835171522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447700531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74616736 + ... + 74616741.

It is an arithmetic number, because the mean of its divisors is an integer number (149233478).

Almost surely, 2^447700431 is an apocalyptic number.

447700431 is a deficient number, since it is larger than the sum of its proper divisors (149233481).

447700431 is a wasteful number, since it uses less digits than its factorization.

447700431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149233480.

The product of its (nonzero) digits is 9408, while the sum is 30.

The square root of 447700431 is about 21158.9326526647. The cubic root of 447700431 is about 765.0018830318.

The spelling of 447700431 in words is "four hundred forty-seven million, seven hundred thousand, four hundred thirty-one".