18096971 has 4 divisors (see below), whose sum is σ = 18116472. Its totient is φ = 18077472.

The previous prime is 18096961. The next prime is 18096979. The reversal of 18096971 is 17969081.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17969081 = 13 ⋅1382237.

It is a cyclic number.

It is not a de Polignac number, because 18096971 - 2⁶ = 18096907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18096979) 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, 8285 + ... + 10238.

It is an arithmetic number, because the mean of its divisors is an integer number (4529118).

Almost surely, 2^18096971 is an apocalyptic number.

18096971 is a deficient number, since it is larger than the sum of its proper divisors (19501).

18096971 is an equidigital number, since it uses as much as digits as its factorization.

18096971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19500.

The product of its (nonzero) digits is 27216, while the sum is 41.

The square root of 18096971 is about 4254.0534787424. The cubic root of 18096971 is about 262.5439188798.

The spelling of 18096971 in words is "eighteen million, ninety-six thousand, nine hundred seventy-one".