447240017 has 4 divisors (see below), whose sum is σ = 511131456. Its totient is φ = 383348580.

The previous prime is 447239987. The next prime is 447240043. The reversal of 447240017 is 710042744.

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 447240017 - 2¹⁰ = 447238993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (447240047) 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, 31945709 + ... + 31945722.

It is an arithmetic number, because the mean of its divisors is an integer number (127782864).

Almost surely, 2^447240017 is an apocalyptic number.

It is an amenable number.

447240017 is a deficient number, since it is larger than the sum of its proper divisors (63891439).

447240017 is an equidigital number, since it uses as much as digits as its factorization.

447240017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63891438.

The product of its (nonzero) digits is 6272, while the sum is 29.

The square root of 447240017 is about 21148.0499573838. The cubic root of 447240017 is about 764.7395510783.

The spelling of 447240017 in words is "four hundred forty-seven million, two hundred forty thousand, seventeen".