13880717 has 2 divisors, whose sum is σ = 13880718. Its totient is φ = 13880716.

The previous prime is 13880677. The next prime is 13880723. The reversal of 13880717 is 71708831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7474756 + 6405961 = 2734^2 + 2531^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13880717 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 (13880767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6940358 + 6940359.

It is an arithmetic number, because the mean of its divisors is an integer number (6940359).

Almost surely, 2^13880717 is an apocalyptic number.

It is an amenable number.

13880717 is a deficient number, since it is larger than the sum of its proper divisors (1).

13880717 is an equidigital number, since it uses as much as digits as its factorization.

13880717 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9408, while the sum is 35.

The square root of 13880717 is about 3725.6834272386. The cubic root of 13880717 is about 240.3277755225.

The spelling of 13880717 in words is "thirteen million, eight hundred eighty thousand, seven hundred seventeen".