47113917 has 4 divisors (see below), whose sum is σ = 62818560. Its totient is φ = 31409276.

The previous prime is 47113909. The next prime is 47113933. The reversal of 47113917 is 71931174.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 47113917 - 2³ = 47113909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47113907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7852317 + ... + 7852322.

It is an arithmetic number, because the mean of its divisors is an integer number (15704640).

Almost surely, 2^47113917 is an apocalyptic number.

It is an amenable number.

47113917 is a deficient number, since it is larger than the sum of its proper divisors (15704643).

47113917 is a wasteful number, since it uses less digits than its factorization.

47113917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15704642.

The product of its digits is 5292, while the sum is 33.

The square root of 47113917 is about 6863.9578232970. The cubic root of 47113917 is about 361.1739377621.

The spelling of 47113917 in words is "forty-seven million, one hundred thirteen thousand, nine hundred seventeen".