18082769 has 2 divisors, whose sum is σ = 18082770. Its totient is φ = 18082768.

The previous prime is 18082741. The next prime is 18082811. The reversal of 18082769 is 96728081.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15484225 + 2598544 = 3935^2 + 1612^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18082769 is a prime.

It is a super-2 number, since 2×18082769² = 653973069414722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (18082739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9041384 + 9041385.

It is an arithmetic number, because the mean of its divisors is an integer number (9041385).

Almost surely, 2^18082769 is an apocalyptic number.

It is an amenable number.

18082769 is a deficient number, since it is larger than the sum of its proper divisors (1).

18082769 is an equidigital number, since it uses as much as digits as its factorization.

18082769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 18082769 is about 4252.3839196385. The cubic root of 18082769 is about 262.4752218486.

The spelling of 18082769 in words is "eighteen million, eighty-two thousand, seven hundred sixty-nine".