18796121 has 2 divisors, whose sum is σ = 18796122. Its totient is φ = 18796120.

The previous prime is 18796109. The next prime is 18796123. The reversal of 18796121 is 12169781.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18156121 + 640000 = 4261^2 + 800^2 .

It is a cyclic number.

It is not a de Polignac number, because 18796121 - 2¹⁴ = 18779737 is a prime.

Together with 18796123, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (18796123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9398060 + 9398061.

It is an arithmetic number, because the mean of its divisors is an integer number (9398061).

Almost surely, 2^18796121 is an apocalyptic number.

It is an amenable number.

18796121 is a deficient number, since it is larger than the sum of its proper divisors (1).

18796121 is an equidigital number, since it uses as much as digits as its factorization.

18796121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 35.

The square root of 18796121 is about 4335.4493423404. The cubic root of 18796121 is about 265.8822900524.

It can be divided in two parts, 1879 and 6121, that added together give a cube (8000 = 20³).

The spelling of 18796121 in words is "eighteen million, seven hundred ninety-six thousand, one hundred twenty-one".