13976657 has 2 divisors, whose sum is σ = 13976658. Its totient is φ = 13976656.

The previous prime is 13976623. The next prime is 13976681. The reversal of 13976657 is 75667931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11316496 + 2660161 = 3364^2 + 1631^2 .

It is a cyclic number.

It is not a de Polignac number, because 13976657 - 2¹⁸ = 13714513 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13976357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6988328 + 6988329.

It is an arithmetic number, because the mean of its divisors is an integer number (6988329).

Almost surely, 2^13976657 is an apocalyptic number.

It is an amenable number.

13976657 is a deficient number, since it is larger than the sum of its proper divisors (1).

13976657 is an equidigital number, since it uses as much as digits as its factorization.

13976657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 238140, while the sum is 44.

The square root of 13976657 is about 3738.5367458405. The cubic root of 13976657 is about 240.8801996357.

The spelling of 13976657 in words is "thirteen million, nine hundred seventy-six thousand, six hundred fifty-seven".