13655797 has 2 divisors, whose sum is σ = 13655798. Its totient is φ = 13655796.

The previous prime is 13655791. The next prime is 13655809. The reversal of 13655797 is 79755631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9790641 + 3865156 = 3129^2 + 1966^2 .

It is a cyclic number.

It is not a de Polignac number, because 13655797 - 2⁷ = 13655669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13655791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6827898 + 6827899.

It is an arithmetic number, because the mean of its divisors is an integer number (6827899).

Almost surely, 2^13655797 is an apocalyptic number.

It is an amenable number.

13655797 is a deficient number, since it is larger than the sum of its proper divisors (1).

13655797 is an equidigital number, since it uses as much as digits as its factorization.

13655797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 198450, while the sum is 43.

The square root of 13655797 is about 3695.3750824510. The cubic root of 13655797 is about 239.0226281803.

The spelling of 13655797 in words is "thirteen million, six hundred fifty-five thousand, seven hundred ninety-seven".