13898169 has 8 divisors (see below), whose sum is σ = 20589920. Its totient is φ = 9265428.

The previous prime is 13898167. The next prime is 13898173. The reversal of 13898169 is 96189831.

It is not a de Polignac number, because 13898169 - 2¹ = 13898167 is a prime.

It is a super-2 number, since 2×13898169² = 386318203105122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13898161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257347 + ... + 257400.

It is an arithmetic number, because the mean of its divisors is an integer number (2573740).

Almost surely, 2^13898169 is an apocalyptic number.

It is an amenable number.

13898169 is a deficient number, since it is larger than the sum of its proper divisors (6691751).

13898169 is an equidigital number, since it uses as much as digits as its factorization.

13898169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514756 (or 514750 counting only the distinct ones).

The product of its digits is 93312, while the sum is 45.

The square root of 13898169 is about 3728.0248121492. The cubic root of 13898169 is about 240.4284534102.

The spelling of 13898169 in words is "thirteen million, eight hundred ninety-eight thousand, one hundred sixty-nine".