13689807 has 16 divisors (see below), whose sum is σ = 19161600. Its totient is φ = 8677152.

The previous prime is 13689799. The next prime is 13689821. The reversal of 13689807 is 70898631.

It is not a de Polignac number, because 13689807 - 2³ = 13689799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13689857) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13233 + ... + 14229.

It is an arithmetic number, because the mean of its divisors is an integer number (1197600).

Almost surely, 2^13689807 is an apocalyptic number.

13689807 is a deficient number, since it is larger than the sum of its proper divisors (5471793).

13689807 is a wasteful number, since it uses less digits than its factorization.

13689807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1222.

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

The square root of 13689807 is about 3699.9739188270. The cubic root of 13689807 is about 239.2208936813.

It can be divided in two parts, 1368 and 9807, that added together give a triangular number (11175 = T₁₄₉).

The spelling of 13689807 in words is "thirteen million, six hundred eighty-nine thousand, eight hundred seven".