13398825 has 48 divisors (see below), whose sum is σ = 24552000. Its totient is φ = 6393600.

The previous prime is 13398817. The next prime is 13398859. The reversal of 13398825 is 52889331.

13398825 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13398825 - 2³ = 13398817 is a prime.

It is a super-2 number, since 2×13398825² = 359057022761250, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 89851 + ... + 89999.

It is an arithmetic number, because the mean of its divisors is an integer number (511500).

Almost surely, 2^13398825 is an apocalyptic number.

13398825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13398825 is a deficient number, since it is larger than the sum of its proper divisors (11153175).

13398825 is a wasteful number, since it uses less digits than its factorization.

13398825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282 (or 277 counting only the distinct ones).

The product of its digits is 51840, while the sum is 39.

The square root of 13398825 is about 3660.4405472566. The cubic root of 13398825 is about 237.5138311428.

The spelling of 13398825 in words is "thirteen million, three hundred ninety-eight thousand, eight hundred twenty-five".