447866497 has 4 divisors (see below), whose sum is σ = 482317780. Its totient is φ = 413415216.

The previous prime is 447866491. The next prime is 447866527. The reversal of 447866497 is 794668744.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 72437121 + 375429376 = 8511^2 + 19376^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-447866497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (447866491) 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, 17225622 + ... + 17225647.

It is an arithmetic number, because the mean of its divisors is an integer number (120579445).

Almost surely, 2^447866497 is an apocalyptic number.

It is an amenable number.

447866497 is a deficient number, since it is larger than the sum of its proper divisors (34451283).

447866497 is a wasteful number, since it uses less digits than its factorization.

447866497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34451282.

The product of its digits is 8128512, while the sum is 55.

The square root of 447866497 is about 21162.8565415919. The cubic root of 447866497 is about 765.0964589948.

The spelling of 447866497 in words is "four hundred forty-seven million, eight hundred sixty-six thousand, four hundred ninety-seven".