447257007 has 6 divisors (see below), whose sum is σ = 646037912. Its totient is φ = 298171332.

The previous prime is 447256981. The next prime is 447257021. The reversal of 447257007 is 700752744.

It is a happy number.

It is not a de Polignac number, because 447257007 - 2¹⁰ = 447255983 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 (447257087) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24847603 + ... + 24847620.

Almost surely, 2^447257007 is an apocalyptic number.

447257007 is a deficient number, since it is larger than the sum of its proper divisors (198780905).

447257007 is a wasteful number, since it uses less digits than its factorization.

447257007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49695229 (or 49695226 counting only the distinct ones).

The product of its (nonzero) digits is 54880, while the sum is 36.

The square root of 447257007 is about 21148.4516454515. The cubic root of 447257007 is about 764.7492347381.

The spelling of 447257007 in words is "four hundred forty-seven million, two hundred fifty-seven thousand, seven".