17313993 has 24 divisors (see below), whose sum is σ = 26554528. Its totient is φ = 11267424.

The previous prime is 17313983. The next prime is 17314019. The reversal of 17313993 is 39931371.

It is not a de Polignac number, because 17313993 - 2⁶ = 17313929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (17313913) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9621 + ... + 11277.

Almost surely, 2^17313993 is an apocalyptic number.

It is an amenable number.

17313993 is a deficient number, since it is larger than the sum of its proper divisors (9240535).

17313993 is an equidigital number, since it uses as much as digits as its factorization.

17313993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1715 (or 1703 counting only the distinct ones).

The product of its digits is 15309, while the sum is 36.

The square root of 17313993 is about 4161.0086517574. The cubic root of 17313993 is about 258.7015788410.

The spelling of 17313993 in words is "seventeen million, three hundred thirteen thousand, nine hundred ninety-three".