14631989 has 2 divisors, whose sum is σ = 14631990. Its totient is φ = 14631988.

The previous prime is 14631977. The next prime is 14632003. The reversal of 14631989 is 98913641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14569489 + 62500 = 3817^2 + 250^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14631989 is a prime.

It is a super-2 number, since 2×14631989² = 428190204192242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14631959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7315994 + 7315995.

It is an arithmetic number, because the mean of its divisors is an integer number (7315995).

Almost surely, 2^14631989 is an apocalyptic number.

It is an amenable number.

14631989 is a deficient number, since it is larger than the sum of its proper divisors (1).

14631989 is an equidigital number, since it uses as much as digits as its factorization.

14631989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 41.

The square root of 14631989 is about 3825.1782964981. The cubic root of 14631989 is about 244.5876111213.

The spelling of 14631989 in words is "fourteen million, six hundred thirty-one thousand, nine hundred eighty-nine".