13696787 has 16 divisors (see below), whose sum is σ = 15603840. Its totient is φ = 11932032.

The previous prime is 13696769. The next prime is 13696789. The reversal of 13696787 is 78769631.

It is a cyclic number.

It is not a de Polignac number, because 13696787 - 2⁶ = 13696723 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13696789) 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, 17333 + ... + 18105.

It is an arithmetic number, because the mean of its divisors is an integer number (975240).

Almost surely, 2^13696787 is an apocalyptic number.

13696787 is a deficient number, since it is larger than the sum of its proper divisors (1907053).

13696787 is a wasteful number, since it uses less digits than its factorization.

13696787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862.

The product of its digits is 381024, while the sum is 47.

The square root of 13696787 is about 3700.9170485165. The cubic root of 13696787 is about 239.2615438315.

The spelling of 13696787 in words is "thirteen million, six hundred ninety-six thousand, seven hundred eighty-seven".