13899575 has 12 divisors (see below), whose sum is σ = 17431920. Its totient is φ = 10992960.

The previous prime is 13899569. The next prime is 13899581. The reversal of 13899575 is 57599831.

It is an interprime number because it is at equal distance from previous prime (13899569) and next prime (13899581).

It is not a de Polignac number, because 13899575 - 2⁴ = 13899559 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 899 + ... + 5348.

It is an arithmetic number, because the mean of its divisors is an integer number (1452660).

Almost surely, 2^13899575 is an apocalyptic number.

13899575 is a deficient number, since it is larger than the sum of its proper divisors (3532345).

13899575 is an equidigital number, since it uses as much as digits as its factorization.

13899575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6346 (or 6341 counting only the distinct ones).

The product of its digits is 340200, while the sum is 47.

The square root of 13899575 is about 3728.2133790866. The cubic root of 13899575 is about 240.4365607373.

The spelling of 13899575 in words is "thirteen million, eight hundred ninety-nine thousand, five hundred seventy-five".