13775807 has 2 divisors, whose sum is σ = 13775808. Its totient is φ = 13775806.

The previous prime is 13775791. The next prime is 13775821. The reversal of 13775807 is 70857731.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13775807 - 2⁴ = 13775791 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13775837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6887903 + 6887904.

It is an arithmetic number, because the mean of its divisors is an integer number (6887904).

Almost surely, 2^13775807 is an apocalyptic number.

13775807 is a deficient number, since it is larger than the sum of its proper divisors (1).

13775807 is an equidigital number, since it uses as much as digits as its factorization.

13775807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41160, while the sum is 38.

The square root of 13775807 is about 3711.5774274559. The cubic root of 13775807 is about 239.7207806023.

The spelling of 13775807 in words is "thirteen million, seven hundred seventy-five thousand, eight hundred seven".