13426657 has 2 divisors, whose sum is σ = 13426658. Its totient is φ = 13426656.

The previous prime is 13426613. The next prime is 13426667. The reversal of 13426657 is 75662431.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10471696 + 2954961 = 3236^2 + 1719^2 .

It is a cyclic number.

It is not a de Polignac number, because 13426657 - 2⁷ = 13426529 is a prime.

It is not a weakly prime, because it can be changed into another prime (13426667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6713328 + 6713329.

It is an arithmetic number, because the mean of its divisors is an integer number (6713329).

Almost surely, 2^13426657 is an apocalyptic number.

It is an amenable number.

13426657 is a deficient number, since it is larger than the sum of its proper divisors (1).

13426657 is an equidigital number, since it uses as much as digits as its factorization.

13426657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 34.

The square root of 13426657 is about 3664.2403032552. The cubic root of 13426657 is about 237.6781717505.

The spelling of 13426657 in words is "thirteen million, four hundred twenty-six thousand, six hundred fifty-seven".