16398313 has 4 divisors (see below), whose sum is σ = 16460928. Its totient is φ = 16335700.

The previous prime is 16398299. The next prime is 16398323. The reversal of 16398313 is 31389361.

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 a de Polignac number, because none of the positive numbers 2^k-16398313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16398323) 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, 30913 + ... + 31438.

It is an arithmetic number, because the mean of its divisors is an integer number (4115232).

Almost surely, 2^16398313 is an apocalyptic number.

It is an amenable number.

16398313 is a deficient number, since it is larger than the sum of its proper divisors (62615).

16398313 is an equidigital number, since it uses as much as digits as its factorization.

16398313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62614.

The product of its digits is 11664, while the sum is 34.

The square root of 16398313 is about 4049.4830534279. The cubic root of 16398313 is about 254.0581066557.

The spelling of 16398313 in words is "sixteen million, three hundred ninety-eight thousand, three hundred thirteen".