13995797 has 2 divisors, whose sum is σ = 13995798. Its totient is φ = 13995796.

The previous prime is 13995791. The next prime is 13995809. The reversal of 13995797 is 79759931.

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., 13830961 + 164836 = 3719^2 + 406^2 .

It is a cyclic number.

It is not a de Polignac number, because 13995797 - 2¹⁶ = 13930261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13995791) 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, 6997898 + 6997899.

It is an arithmetic number, because the mean of its divisors is an integer number (6997899).

Almost surely, 2^13995797 is an apocalyptic number.

It is an amenable number.

13995797 is a deficient number, since it is larger than the sum of its proper divisors (1).

13995797 is an equidigital number, since it uses as much as digits as its factorization.

13995797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 535815, while the sum is 50.

The square root of 13995797 is about 3741.0956951139. The cubic root of 13995797 is about 240.9901053656.

The spelling of 13995797 in words is "thirteen million, nine hundred ninety-five thousand, seven hundred ninety-seven".