13925389 has 4 divisors (see below), whose sum is σ = 13933756. Its totient is φ = 13917024.

The previous prime is 13925377. The next prime is 13925399. The reversal of 13925389 is 98352931.

13925389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 8749764 + 5175625 = 2958^2 + 2275^2 .

It is a cyclic number.

It is not a de Polignac number, because 13925389 - 2¹⁷ = 13794317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13925399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 744 + ... + 5329.

It is an arithmetic number, because the mean of its divisors is an integer number (3483439).

Almost surely, 2^13925389 is an apocalyptic number.

It is an amenable number.

13925389 is a deficient number, since it is larger than the sum of its proper divisors (8367).

13925389 is an equidigital number, since it uses as much as digits as its factorization.

13925389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8366.

The product of its digits is 58320, while the sum is 40.

The square root of 13925389 is about 3731.6737531569. The cubic root of 13925389 is about 240.5853132726.

The spelling of 13925389 in words is "thirteen million, nine hundred twenty-five thousand, three hundred eighty-nine".