13878701 has 2 divisors, whose sum is σ = 13878702. Its totient is φ = 13878700.

The previous prime is 13878691. The next prime is 13878707. The reversal of 13878701 is 10787831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9672100 + 4206601 = 3110^2 + 2051^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13878701 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 (13878707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6939350 + 6939351.

It is an arithmetic number, because the mean of its divisors is an integer number (6939351).

Almost surely, 2^13878701 is an apocalyptic number.

It is an amenable number.

13878701 is a deficient number, since it is larger than the sum of its proper divisors (1).

13878701 is an equidigital number, since it uses as much as digits as its factorization.

13878701 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 13878701 is about 3725.4128630261. The cubic root of 13878701 is about 240.3161400944.

The spelling of 13878701 in words is "thirteen million, eight hundred seventy-eight thousand, seven hundred one".