13579697 has 2 divisors, whose sum is σ = 13579698. Its totient is φ = 13579696.

The previous prime is 13579681. The next prime is 13579721. The reversal of 13579697 is 79697531.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11826721 + 1752976 = 3439^2 + 1324^2 .

It is a cyclic number.

It is not a de Polignac number, because 13579697 - 2⁴ = 13579681 is a prime.

It is a super-2 number, since 2×13579697² = 368816341223618, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13579667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6789848 + 6789849.

It is an arithmetic number, because the mean of its divisors is an integer number (6789849).

Almost surely, 2^13579697 is an apocalyptic number.

It is an amenable number.

13579697 is a deficient number, since it is larger than the sum of its proper divisors (1).

13579697 is an equidigital number, since it uses as much as digits as its factorization.

13579697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 357210, while the sum is 47.

The square root of 13579697 is about 3685.0640428628. The cubic root of 13579697 is about 238.5777983987.

The spelling of 13579697 in words is "thirteen million, five hundred seventy-nine thousand, six hundred ninety-seven".