13892091 has 4 divisors (see below), whose sum is σ = 18522792. Its totient is φ = 9261392.

The previous prime is 13892083. The next prime is 13892093. The reversal of 13892091 is 19029831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19029831 = 3 ⋅6343277.

It is a cyclic number.

It is not a de Polignac number, because 13892091 - 2³ = 13892083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13892093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2315346 + ... + 2315351.

It is an arithmetic number, because the mean of its divisors is an integer number (4630698).

Almost surely, 2^13892091 is an apocalyptic number.

13892091 is a deficient number, since it is larger than the sum of its proper divisors (4630701).

13892091 is an equidigital number, since it uses as much as digits as its factorization.

13892091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4630700.

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 13892091 is about 3727.2095460277. The cubic root of 13892091 is about 240.3933999386.

It can be divided in two parts, 138 and 92091, that added together give a palindrome (92229).

The spelling of 13892091 in words is "thirteen million, eight hundred ninety-two thousand, ninety-one".