14627681 has 2 divisors, whose sum is σ = 14627682. Its totient is φ = 14627680.

The previous prime is 14627677. The next prime is 14627689. The reversal of 14627681 is 18672641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13808656 + 819025 = 3716^2 + 905^2 .

It is a cyclic number.

It is not a de Polignac number, because 14627681 - 2² = 14627677 is a prime.

It is a super-2 number, since 2×14627681² = 427938102875522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (14627689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7313840 + 7313841.

It is an arithmetic number, because the mean of its divisors is an integer number (7313841).

Almost surely, 2^14627681 is an apocalyptic number.

It is an amenable number.

14627681 is a deficient number, since it is larger than the sum of its proper divisors (1).

14627681 is an equidigital number, since it uses as much as digits as its factorization.

14627681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 35.

The square root of 14627681 is about 3824.6151440374. The cubic root of 14627681 is about 244.5636046595.

The spelling of 14627681 in words is "fourteen million, six hundred twenty-seven thousand, six hundred eighty-one".