13331797 has 2 divisors, whose sum is σ = 13331798. Its totient is φ = 13331796.

The previous prime is 13331761. The next prime is 13331809. The reversal of 13331797 is 79713331.

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., 13024881 + 306916 = 3609^2 + 554^2 .

It is a cyclic number.

It is not a de Polignac number, because 13331797 - 2²³ = 4943189 is a prime.

It is a super-2 number, since 2×13331797² = 355473622498418, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13331707) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6665898 + 6665899.

It is an arithmetic number, because the mean of its divisors is an integer number (6665899).

Almost surely, 2^13331797 is an apocalyptic number.

It is an amenable number.

13331797 is a deficient number, since it is larger than the sum of its proper divisors (1).

13331797 is an equidigital number, since it uses as much as digits as its factorization.

13331797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11907, while the sum is 34.

The square root of 13331797 is about 3651.2733395351. The cubic root of 13331797 is about 237.1171123266.

The spelling of 13331797 in words is "thirteen million, three hundred thirty-one thousand, seven hundred ninety-seven".