47156317 has 16 divisors (see below), whose sum is σ = 54008640. Its totient is φ = 40787712.

The previous prime is 47156311. The next prime is 47156327. The reversal of 47156317 is 71365174.

It is a cyclic number.

It is not a de Polignac number, because 47156317 - 2⁷ = 47156189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47156311) 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, 83478 + ... + 84040.

It is an arithmetic number, because the mean of its divisors is an integer number (3375540).

Almost surely, 2^47156317 is an apocalyptic number.

It is an amenable number.

47156317 is a deficient number, since it is larger than the sum of its proper divisors (6852323).

47156317 is a wasteful number, since it uses less digits than its factorization.

47156317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972.

The product of its digits is 17640, while the sum is 34.

The square root of 47156317 is about 6867.0457257834. The cubic root of 47156317 is about 361.2822510049.

The spelling of 47156317 in words is "forty-seven million, one hundred fifty-six thousand, three hundred seventeen".