7318689 has 12 divisors (see below), whose sum is σ = 11351664. Its totient is φ = 4182024.

The previous prime is 7318681. The next prime is 7318723. The reversal of 7318689 is 9868137.

It is not a de Polignac number, because 7318689 - 2³ = 7318681 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7318689.

It is not an unprimeable number, because it can be changed into a prime (7318681) 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 11 ways as a sum of consecutive naturals, for example, 24747 + ... + 25040.

It is an arithmetic number, because the mean of its divisors is an integer number (945972).

Almost surely, 2^7318689 is an apocalyptic number.

It is an amenable number.

7318689 is a deficient number, since it is larger than the sum of its proper divisors (4032975).

7318689 is a wasteful number, since it uses less digits than its factorization.

7318689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49804 (or 49797 counting only the distinct ones).

The product of its digits is 72576, while the sum is 42.

The square root of 7318689 is about 2705.3075610732. The cubic root of 7318689 is about 194.1531454499.

The spelling of 7318689 in words is "seven million, three hundred eighteen thousand, six hundred eighty-nine".