447631073 has 4 divisors (see below), whose sum is σ = 453935808. Its totient is φ = 441326340.

The previous prime is 447631039. The next prime is 447631111. The reversal of 447631073 is 370136744.

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 a de Polignac number, because none of the positive numbers 2^k-447631073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (447631273) 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, 3152261 + ... + 3152402.

It is an arithmetic number, because the mean of its divisors is an integer number (113483952).

Almost surely, 2^447631073 is an apocalyptic number.

It is an amenable number.

447631073 is a deficient number, since it is larger than the sum of its proper divisors (6304735).

447631073 is an equidigital number, since it uses as much as digits as its factorization.

447631073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6304734.

The product of its (nonzero) digits is 42336, while the sum is 35.

The square root of 447631073 is about 21157.2936123692. The cubic root of 447631073 is about 764.9623761524.

The spelling of 447631073 in words is "four hundred forty-seven million, six hundred thirty-one thousand, seventy-three".