386817117 has 4 divisors (see below), whose sum is σ = 515756160. Its totient is φ = 257878076.

The previous prime is 386817113. The next prime is 386817169. The reversal of 386817117 is 711718683.

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 386817117 - 2² = 386817113 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (386817113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64469517 + ... + 64469522.

It is an arithmetic number, because the mean of its divisors is an integer number (128939040).

Almost surely, 2^386817117 is an apocalyptic number.

It is an amenable number.

386817117 is a deficient number, since it is larger than the sum of its proper divisors (128939043).

386817117 is a wasteful number, since it uses less digits than its factorization.

386817117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128939042.

The product of its digits is 56448, while the sum is 42.

The square root of 386817117 is about 19667.6667909541. Note that the first 3 decimals coincide. The cubic root of 386817117 is about 728.6213530737.

The spelling of 386817117 in words is "three hundred eighty-six million, eight hundred seventeen thousand, one hundred seventeen".