447650057 has 2 divisors, whose sum is σ = 447650058. Its totient is φ = 447650056.

The previous prime is 447650039. The next prime is 447650059. The reversal of 447650057 is 750056744.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 318122896 + 129527161 = 17836^2 + 11381^2 .

It is a cyclic number.

It is not a de Polignac number, because 447650057 - 2²⁰ = 446601481 is a prime.

Together with 447650059, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 447650057.

It is not a weakly prime, because it can be changed into another prime (447650059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 223825028 + 223825029.

It is an arithmetic number, because the mean of its divisors is an integer number (223825029).

Almost surely, 2^447650057 is an apocalyptic number.

It is an amenable number.

447650057 is a deficient number, since it is larger than the sum of its proper divisors (1).

447650057 is an equidigital number, since it uses as much as digits as its factorization.

447650057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 117600, while the sum is 38.

The square root of 447650057 is about 21157.7422472248. The cubic root of 447650057 is about 764.9731899984.

The spelling of 447650057 in words is "four hundred forty-seven million, six hundred fifty thousand, fifty-seven".