13692689 has 4 divisors (see below), whose sum is σ = 13818420. Its totient is φ = 13566960.

The previous prime is 13692649. The next prime is 13692691. The reversal of 13692689 is 98629631.

13692689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6760000 + 6932689 = 2600^2 + 2633^2 .

It is a cyclic number.

It is not a de Polignac number, because 13692689 - 2¹² = 13688593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13692649) 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, 62702 + ... + 62919.

It is an arithmetic number, because the mean of its divisors is an integer number (3454605).

Almost surely, 2^13692689 is an apocalyptic number.

It is an amenable number.

13692689 is a deficient number, since it is larger than the sum of its proper divisors (125731).

13692689 is a wasteful number, since it uses less digits than its factorization.

13692689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125730.

The product of its digits is 139968, while the sum is 44.

The square root of 13692689 is about 3700.3633605364. The cubic root of 13692689 is about 239.2376795581.

The spelling of 13692689 in words is "thirteen million, six hundred ninety-two thousand, six hundred eighty-nine".