13897169 has 16 divisors (see below), whose sum is σ = 16457280. Its totient is φ = 11568960.

The previous prime is 13897141. The next prime is 13897181. The reversal of 13897169 is 96179831.

It is not a de Polignac number, because 13897169 - 2¹⁶ = 13831633 is a prime.

It is a super-2 number, since 2×13897169² = 386262612429122, 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 (13897139) 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 15 ways as a sum of consecutive naturals, for example, 22142 + ... + 22760.

It is an arithmetic number, because the mean of its divisors is an integer number (1028580).

Almost surely, 2^13897169 is an apocalyptic number.

It is an amenable number.

13897169 is a deficient number, since it is larger than the sum of its proper divisors (2560111).

13897169 is a wasteful number, since it uses less digits than its factorization.

13897169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800.

The product of its digits is 81648, while the sum is 44.

The square root of 13897169 is about 3727.8906904575. The cubic root of 13897169 is about 240.4226868419.

It can be divided in two parts, 1389 and 7169, that added together give a palindrome (8558).

The spelling of 13897169 in words is "thirteen million, eight hundred ninety-seven thousand, one hundred sixty-nine".