13891069 has 8 divisors (see below), whose sum is σ = 14474240. Its totient is φ = 13316400.

The previous prime is 13891063. The next prime is 13891081. The reversal of 13891069 is 96019831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13891069 - 2⁵ = 13891037 is a prime.

It is a super-2 number, since 2×13891069² = 385923595925522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13891063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1324 + ... + 5434.

It is an arithmetic number, because the mean of its divisors is an integer number (1809280).

Almost surely, 2^13891069 is an apocalyptic number.

It is an amenable number.

13891069 is a deficient number, since it is larger than the sum of its proper divisors (583171).

13891069 is a wasteful number, since it uses less digits than its factorization.

13891069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4251.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 13891069 is about 3727.0724436211. The cubic root of 13891069 is about 240.3875047838.

It can be divided in two parts, 1389 and 1069, that multiplied together give a palindrome (1484841).

The spelling of 13891069 in words is "thirteen million, eight hundred ninety-one thousand, sixty-nine".