447911901 has 12 divisors (see below), whose sum is σ = 667854720. Its totient is φ = 288975240.

The previous prime is 447911843. The next prime is 447911911. The reversal of 447911901 is 109119744.

It is not a de Polignac number, because 447911901 - 2²⁵ = 414357469 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447911911) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 802431 + ... + 802988.

It is an arithmetic number, because the mean of its divisors is an integer number (55654560).

Almost surely, 2^447911901 is an apocalyptic number.

It is an amenable number.

447911901 is a deficient number, since it is larger than the sum of its proper divisors (219942819).

447911901 is a wasteful number, since it uses less digits than its factorization.

447911901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1605456 (or 1605453 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 447911901 is about 21163.9292429360. The cubic root of 447911901 is about 765.1223128791.

The spelling of 447911901 in words is "four hundred forty-seven million, nine hundred eleven thousand, nine hundred one".