316689899 has 4 divisors (see below), whose sum is σ = 317207136. Its totient is φ = 316172664.

The previous prime is 316689869. The next prime is 316689913. The reversal of 316689899 is 998986613.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 998986613 = 16087 ⋅62099.

It is a cyclic number.

It is not a de Polignac number, because 316689899 - 2⁸ = 316689643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (316689809) 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, 257699 + ... + 258924.

It is an arithmetic number, because the mean of its divisors is an integer number (79301784).

Almost surely, 2^316689899 is an apocalyptic number.

316689899 is a deficient number, since it is larger than the sum of its proper divisors (517237).

316689899 is an equidigital number, since it uses as much as digits as its factorization.

316689899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517236.

The product of its digits is 5038848, while the sum is 59.

The square root of 316689899 is about 17795.7831802930. The cubic root of 316689899 is about 681.6237859643.

The spelling of 316689899 in words is "three hundred sixteen million, six hundred eighty-nine thousand, eight hundred ninety-nine".