13086765 has 24 divisors (see below), whose sum is σ = 23526048. Its totient is φ = 6978960.

The previous prime is 13086739. The next prime is 13086767. The reversal of 13086765 is 56768031.

13086765 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13086765 - 2⁸ = 13086509 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13086767) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4171 + ... + 6600.

It is an arithmetic number, because the mean of its divisors is an integer number (980252).

Almost surely, 2^13086765 is an apocalyptic number.

13086765 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13086765 is a deficient number, since it is larger than the sum of its proper divisors (10439283).

13086765 is an equidigital number, since it uses as much as digits as its factorization.

13086765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10791 (or 10779 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 13086765 is about 3617.5634064934. The cubic root of 13086765 is about 235.6554209562.

The spelling of 13086765 in words is "thirteen million, eighty-six thousand, seven hundred sixty-five".