18982967 has 2 divisors, whose sum is σ = 18982968. Its totient is φ = 18982966.

The previous prime is 18982963. The next prime is 18982969. The reversal of 18982967 is 76928981.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18982967 - 2² = 18982963 is a prime.

It is a super-2 number, since 2×18982967² = 720706072246178, which contains 22 as substring.

Together with 18982969, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18982963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9491483 + 9491484.

It is an arithmetic number, because the mean of its divisors is an integer number (9491484).

Almost surely, 2^18982967 is an apocalyptic number.

18982967 is a deficient number, since it is larger than the sum of its proper divisors (1).

18982967 is an equidigital number, since it uses as much as digits as its factorization.

18982967 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 50.

The square root of 18982967 is about 4356.9446863599. The cubic root of 18982967 is about 266.7604026373.

The spelling of 18982967 in words is "eighteen million, nine hundred eighty-two thousand, nine hundred sixty-seven".