47884917 has 16 divisors (see below), whose sum is σ = 65292480. Its totient is φ = 31204992.

The previous prime is 47884909. The next prime is 47884933. The reversal of 47884917 is 71948874.

It is not a de Polignac number, because 47884917 - 2³ = 47884909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47884957) 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, 72334 + ... + 72992.

It is an arithmetic number, because the mean of its divisors is an integer number (4080780).

Almost surely, 2^47884917 is an apocalyptic number.

It is an amenable number.

47884917 is a deficient number, since it is larger than the sum of its proper divisors (17407563).

47884917 is a wasteful number, since it uses less digits than its factorization.

47884917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1172.

The product of its digits is 451584, while the sum is 48.

The square root of 47884917 is about 6919.8928459912. The cubic root of 47884917 is about 363.1334421248.

The spelling of 47884917 in words is "forty-seven million, eight hundred eighty-four thousand, nine hundred seventeen".