13891033 has 8 divisors (see below), whose sum is σ = 15747200. Its totient is φ = 12147408.

The previous prime is 13890973. The next prime is 13891037. The reversal of 13891033 is 33019831.

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

It is not a de Polignac number, because 13891033 - 2¹⁷ = 13759961 is a prime.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 13890992 and 13891010.

It is not an unprimeable number, because it can be changed into a prime (13891037) 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, 27873 + ... + 28366.

It is an arithmetic number, because the mean of its divisors is an integer number (1968400).

Almost surely, 2^13891033 is an apocalyptic number.

13891033 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13891033 is a deficient number, since it is larger than the sum of its proper divisors (1856167).

13891033 is a wasteful number, since it uses less digits than its factorization.

13891033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56271.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 13891033 is about 3727.0676140902. The cubic root of 13891033 is about 240.3872971214.

The spelling of 13891033 in words is "thirteen million, eight hundred ninety-one thousand, thirty-three".