13765389 has 8 divisors (see below), whose sum is σ = 20022432. Its totient is φ = 8342640.

The previous prime is 13765387. The next prime is 13765397. The reversal of 13765389 is 98356731.

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

It is not a de Polignac number, because 13765389 - 2¹ = 13765387 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13765389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13765387) 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, 208534 + ... + 208599.

It is an arithmetic number, because the mean of its divisors is an integer number (2502804).

Almost surely, 2^13765389 is an apocalyptic number.

It is an amenable number.

13765389 is a deficient number, since it is larger than the sum of its proper divisors (6257043).

13765389 is a wasteful number, since it uses less digits than its factorization.

13765389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417147.

The product of its digits is 136080, while the sum is 42.

The square root of 13765389 is about 3710.1737156096. The cubic root of 13765389 is about 239.6603354824.

The spelling of 13765389 in words is "thirteen million, seven hundred sixty-five thousand, three hundred eighty-nine".