13662697 has 2 divisors, whose sum is σ = 13662698. Its totient is φ = 13662696.

The previous prime is 13662643. The next prime is 13662703. The reversal of 13662697 is 79626631.

13662697 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11634921 + 2027776 = 3411^2 + 1424^2 .

It is a cyclic number.

It is not a de Polignac number, because 13662697 - 2¹¹ = 13660649 is a prime.

It is equal to p₈₈₉₅₅₅ and since 13662697 and 889555 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (13662097) 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, 6831348 + 6831349.

It is an arithmetic number, because the mean of its divisors is an integer number (6831349).

Almost surely, 2^13662697 is an apocalyptic number.

It is an amenable number.

13662697 is a deficient number, since it is larger than the sum of its proper divisors (1).

13662697 is an equidigital number, since it uses as much as digits as its factorization.

13662697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81648, while the sum is 40.

The square root of 13662697 is about 3696.3085639595. The cubic root of 13662697 is about 239.0628791798.

The spelling of 13662697 in words is "thirteen million, six hundred sixty-two thousand, six hundred ninety-seven".