316547899 has 2 divisors, whose sum is σ = 316547900. Its totient is φ = 316547898.

The previous prime is 316547893. The next prime is 316547941. The reversal of 316547899 is 998745613.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (998745613) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 316547899 - 2¹¹ = 316545851 is a prime.

It is a super-4 number, since 4×316547899⁴ (a number of 35 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (316547893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158273949 + 158273950.

It is an arithmetic number, because the mean of its divisors is an integer number (158273950).

Almost surely, 2^316547899 is an apocalyptic number.

316547899 is a deficient number, since it is larger than the sum of its proper divisors (1).

316547899 is an equidigital number, since it uses as much as digits as its factorization.

316547899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1632960, while the sum is 52.

The square root of 316547899 is about 17791.7930237511. The cubic root of 316547899 is about 681.5218933893.

The spelling of 316547899 in words is "three hundred sixteen million, five hundred forty-seven thousand, eight hundred ninety-nine".