447977285 has 16 divisors (see below), whose sum is σ = 650509056. Its totient is φ = 289114368.

The previous prime is 447977281. The next prime is 447977303. The reversal of 447977285 is 582779744.

It is a cyclic number.

It is not a de Polignac number, because 447977285 - 2² = 447977281 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 (447977281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 375857 + ... + 377046.

It is an arithmetic number, because the mean of its divisors is an integer number (40656816).

Almost surely, 2^447977285 is an apocalyptic number.

It is an amenable number.

447977285 is a deficient number, since it is larger than the sum of its proper divisors (202531771).

447977285 is a wasteful number, since it uses less digits than its factorization.

447977285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752932.

The product of its digits is 3951360, while the sum is 53.

The square root of 447977285 is about 21165.4738902771. The cubic root of 447977285 is about 765.1595406785.

The spelling of 447977285 in words is "four hundred forty-seven million, nine hundred seventy-seven thousand, two hundred eighty-five".