47809465 has 16 divisors (see below), whose sum is σ = 63296640. Its totient is φ = 34376320.

The previous prime is 47809451. The next prime is 47809477. The reversal of 47809465 is 56490874.

It is not a de Polignac number, because 47809465 - 2⁹ = 47808953 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12 + ... + 9778.

It is an arithmetic number, because the mean of its divisors is an integer number (3956040).

Almost surely, 2^47809465 is an apocalyptic number.

It is an amenable number.

47809465 is a deficient number, since it is larger than the sum of its proper divisors (15487175).

47809465 is a wasteful number, since it uses less digits than its factorization.

47809465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9872.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 47809465 is about 6914.4388781737. The cubic root of 47809465 is about 362.9426127384.

The spelling of 47809465 in words is "forty-seven million, eight hundred nine thousand, four hundred sixty-five".