447897793 has 16 divisors (see below), whose sum is σ = 542623104. Its totient is φ = 360910080.

The previous prime is 447897787. The next prime is 447897803. The reversal of 447897793 is 397798744.

It is a cyclic number.

It is not a de Polignac number, because 447897793 - 2²⁵ = 414343361 is a prime.

It is a super-2 number, since 2×447897793² = 401224865948541698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (447897743) 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, 138946 + ... + 142132.

It is an arithmetic number, because the mean of its divisors is an integer number (33913944).

Almost surely, 2^447897793 is an apocalyptic number.

It is an amenable number.

447897793 is a deficient number, since it is larger than the sum of its proper divisors (94725311).

447897793 is a wasteful number, since it uses less digits than its factorization.

447897793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4392.

The product of its digits is 10668672, while the sum is 58.

The square root of 447897793 is about 21163.5959373638. The cubic root of 447897793 is about 765.1142797079.

The spelling of 447897793 in words is "four hundred forty-seven million, eight hundred ninety-seven thousand, seven hundred ninety-three".