317428886 has 4 divisors (see below), whose sum is σ = 476143332. Its totient is φ = 158714442.

The previous prime is 317428849. The next prime is 317428889. The reversal of 317428886 is 688824713.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×317428886² = 201522195334401992, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 317428886.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317428889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79357220 + ... + 79357223.

It is an arithmetic number, because the mean of its divisors is an integer number (119035833).

Almost surely, 2^317428886 is an apocalyptic number.

317428886 is a deficient number, since it is larger than the sum of its proper divisors (158714446).

317428886 is a wasteful number, since it uses less digits than its factorization.

317428886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158714445.

The product of its digits is 516096, while the sum is 47.

The square root of 317428886 is about 17816.5340624937. The cubic root of 317428886 is about 682.1535574398.

The spelling of 317428886 in words is "three hundred seventeen million, four hundred twenty-eight thousand, eight hundred eighty-six".