13568690 has 8 divisors (see below), whose sum is σ = 24423660. Its totient is φ = 5427472.

The previous prime is 13568627. The next prime is 13568707. The reversal of 13568690 is 9686531.

13568690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 13446889 + 121801 = 3667^2 + 349^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×13568690² = 368218696632200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 678425 + ... + 678444.

Almost surely, 2^13568690 is an apocalyptic number.

13568690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13568690 is a deficient number, since it is larger than the sum of its proper divisors (10854970).

13568690 is a wasteful number, since it uses less digits than its factorization.

13568690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1356876.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 13568690 is about 3683.5702789549. The cubic root of 13568690 is about 238.5133213672.

The spelling of 13568690 in words is "thirteen million, five hundred sixty-eight thousand, six hundred ninety".