13870765 has 8 divisors (see below), whose sum is σ = 16692480. Its totient is φ = 11064912.

The previous prime is 13870763. The next prime is 13870799. The reversal of 13870765 is 56707831.

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

It is a cyclic number.

It is not a de Polignac number, because 13870765 - 2¹ = 13870763 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13870763) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1945 + ... + 5614.

It is an arithmetic number, because the mean of its divisors is an integer number (2086560).

Almost surely, 2^13870765 is an apocalyptic number.

It is an amenable number.

13870765 is a deficient number, since it is larger than the sum of its proper divisors (2821715).

13870765 is an equidigital number, since it uses as much as digits as its factorization.

13870765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7931.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 13870765 is about 3724.3475938747. The cubic root of 13870765 is about 240.2703261884.

The spelling of 13870765 in words is "thirteen million, eight hundred seventy thousand, seven hundred sixty-five".