13397497 has 2 divisors, whose sum is σ = 13397498. Its totient is φ = 13397496.

The previous prime is 13397473. The next prime is 13397509. The reversal of 13397497 is 79479331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13388281 + 9216 = 3659^2 + 96^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13397497 is a prime.

It is not a weakly prime, because it can be changed into another prime (13397407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6698748 + 6698749.

It is an arithmetic number, because the mean of its divisors is an integer number (6698749).

Almost surely, 2^13397497 is an apocalyptic number.

It is an amenable number.

13397497 is a deficient number, since it is larger than the sum of its proper divisors (1).

13397497 is an equidigital number, since it uses as much as digits as its factorization.

13397497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 142884, while the sum is 43.

The square root of 13397497 is about 3660.2591438312. The cubic root of 13397497 is about 237.5059839674.

It can be divided in two parts, 1339 and 7497, that added together give a square (8836 = 94²).

The spelling of 13397497 in words is "thirteen million, three hundred ninety-seven thousand, four hundred ninety-seven".