13868825 has 6 divisors (see below), whose sum is σ = 17197374. Its totient is φ = 11095040.

The previous prime is 13868809. The next prime is 13868837. The reversal of 13868825 is 52886831.

It can be written as a sum of positive squares in 3 ways, for example, as 4084441 + 9784384 = 2021^2 + 3128^2 .

It is not a de Polignac number, because 13868825 - 2⁴ = 13868809 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 277352 + ... + 277401.

It is an arithmetic number, because the mean of its divisors is an integer number (2866229).

Almost surely, 2^13868825 is an apocalyptic number.

It is an amenable number.

13868825 is a deficient number, since it is larger than the sum of its proper divisors (3328549).

13868825 is an equidigital number, since it uses as much as digits as its factorization.

13868825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554763 (or 554758 counting only the distinct ones).

The product of its digits is 92160, while the sum is 41.

The square root of 13868825 is about 3724.0871364671. The cubic root of 13868825 is about 240.2591240625.

The spelling of 13868825 in words is "thirteen million, eight hundred sixty-eight thousand, eight hundred twenty-five".