117386947 has 16 divisors (see below), whose sum is σ = 122791680. Its totient is φ = 112140000.

The previous prime is 117386939. The next prime is 117386953. The reversal of 117386947 is 749683711.

It is a cyclic number.

It is not a de Polignac number, because 117386947 - 2³ = 117386939 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 117386897 and 117386906.

It is not an unprimeable number, because it can be changed into a prime (117386957) 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, 655704 + ... + 655882.

It is an arithmetic number, because the mean of its divisors is an integer number (7674480).

Almost surely, 2^117386947 is an apocalyptic number.

117386947 is a deficient number, since it is larger than the sum of its proper divisors (5404733).

117386947 is a wasteful number, since it uses less digits than its factorization.

117386947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474.

The product of its digits is 254016, while the sum is 46.

The square root of 117386947 is about 10834.5256933564. The cubic root of 117386947 is about 489.6359186340.

The spelling of 117386947 in words is "one hundred seventeen million, three hundred eighty-six thousand, nine hundred forty-seven".