47917165 has 16 divisors (see below), whose sum is σ = 61940736. Its totient is φ = 35481600.

The previous prime is 47917157. The next prime is 47917171. The reversal of 47917165 is 56171974.

It is not a de Polignac number, because 47917165 - 2³ = 47917157 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 3156 + ... + 10285.

It is an arithmetic number, because the mean of its divisors is an integer number (3871296).

Almost surely, 2^47917165 is an apocalyptic number.

It is an amenable number.

47917165 is a deficient number, since it is larger than the sum of its proper divisors (14023571).

47917165 is a wasteful number, since it uses less digits than its factorization.

47917165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13500.

The product of its digits is 52920, while the sum is 40.

The square root of 47917165 is about 6922.2225477082. Note that the first 3 decimals coincide. The cubic root of 47917165 is about 363.2149409919.

It can be divided in two parts, 4791716 and 5, that added together give a square (4791721 = 2189²).

The spelling of 47917165 in words is "forty-seven million, nine hundred seventeen thousand, one hundred sixty-five".