13898765 has 16 divisors (see below), whose sum is σ = 17091648. Its totient is φ = 10847616.

The previous prime is 13898719. The next prime is 13898771. The reversal of 13898765 is 56789831.

It is a happy number.

13898765 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 13898765 - 2⁶ = 13898701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44249 + ... + 44561.

It is an arithmetic number, because the mean of its divisors is an integer number (1068228).

Almost surely, 2^13898765 is an apocalyptic number.

It is an amenable number.

13898765 is a deficient number, since it is larger than the sum of its proper divisors (3192883).

13898765 is a wasteful number, since it uses less digits than its factorization.

13898765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508.

The product of its digits is 362880, while the sum is 47.

The square root of 13898765 is about 3728.1047463825. The cubic root of 13898765 is about 240.4318901533.

The spelling of 13898765 in words is "thirteen million, eight hundred ninety-eight thousand, seven hundred sixty-five".