316899993 has 8 divisors (see below), whose sum is σ = 444772000. Its totient is φ = 200147328.

The previous prime is 316899977. The next prime is 316900007. The reversal of 316899993 is 399998613.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 316899993 - 2⁴ = 316899977 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57), and also a Moran number because the ratio is a prime number: 5559649 = 316899993 / (3 + 1 + 6 + 8 + 9 + 9 + 9 + 9 + 3).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (316899943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2779768 + ... + 2779881.

It is an arithmetic number, because the mean of its divisors is an integer number (55596500).

Almost surely, 2^316899993 is an apocalyptic number.

It is an amenable number.

316899993 is a deficient number, since it is larger than the sum of its proper divisors (127872007).

316899993 is a wasteful number, since it uses less digits than its factorization.

316899993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5559671.

The product of its digits is 2834352, while the sum is 57.

The square root of 316899993 is about 17801.6851168646. The cubic root of 316899993 is about 681.7744837627.

The spelling of 316899993 in words is "three hundred sixteen million, eight hundred ninety-nine thousand, nine hundred ninety-three".