447542317 has 4 divisors (see below), whose sum is σ = 455127840. Its totient is φ = 439956796.

The previous prime is 447542309. The next prime is 447542339. The reversal of 447542317 is 713245744.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 447542317 - 2³ = 447542309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447542917) 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, 3792673 + ... + 3792790.

It is an arithmetic number, because the mean of its divisors is an integer number (113781960).

Almost surely, 2^447542317 is an apocalyptic number.

It is an amenable number.

447542317 is a deficient number, since it is larger than the sum of its proper divisors (7585523).

447542317 is an equidigital number, since it uses as much as digits as its factorization.

447542317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7585522.

The product of its digits is 94080, while the sum is 37.

The square root of 447542317 is about 21155.1959811296. The cubic root of 447542317 is about 764.9118140618.

The spelling of 447542317 in words is "four hundred forty-seven million, five hundred forty-two thousand, three hundred seventeen".