13925797 has 2 divisors, whose sum is σ = 13925798. Its totient is φ = 13925796.

The previous prime is 13925783. The next prime is 13925819. The reversal of 13925797 is 79752931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10536516 + 3389281 = 3246^2 + 1841^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13925797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13925297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6962898 + 6962899.

It is an arithmetic number, because the mean of its divisors is an integer number (6962899).

Almost surely, 2^13925797 is an apocalyptic number.

It is an amenable number.

13925797 is a deficient number, since it is larger than the sum of its proper divisors (1).

13925797 is an equidigital number, since it uses as much as digits as its factorization.

13925797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 119070, while the sum is 43.

The square root of 13925797 is about 3731.7284199148. The cubic root of 13925797 is about 240.5876628862.

The spelling of 13925797 in words is "thirteen million, nine hundred twenty-five thousand, seven hundred ninety-seven".