18796489 has 2 divisors, whose sum is σ = 18796490. Its totient is φ = 18796488.

The previous prime is 18796483. The next prime is 18796493. The reversal of 18796489 is 98469781.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18636489 + 160000 = 4317^2 + 400^2 .

It is a cyclic number.

It is not a de Polignac number, because 18796489 - 2⁹ = 18795977 is a prime.

It is not a weakly prime, because it can be changed into another prime (18796483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9398244 + 9398245.

It is an arithmetic number, because the mean of its divisors is an integer number (9398245).

Almost surely, 2^18796489 is an apocalyptic number.

It is an amenable number.

18796489 is a deficient number, since it is larger than the sum of its proper divisors (1).

18796489 is an equidigital number, since it uses as much as digits as its factorization.

18796489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 870912, while the sum is 52.

The square root of 18796489 is about 4335.4917829469. The cubic root of 18796489 is about 265.8840252339.

The spelling of 18796489 in words is "eighteen million, seven hundred ninety-six thousand, four hundred eighty-nine".