13913807 has 2 divisors, whose sum is σ = 13913808. Its totient is φ = 13913806.

The previous prime is 13913791. The next prime is 13913819. The reversal of 13913807 is 70831931.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13913807 - 2⁴ = 13913791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13913407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6956903 + 6956904.

It is an arithmetic number, because the mean of its divisors is an integer number (6956904).

Almost surely, 2^13913807 is an apocalyptic number.

13913807 is a deficient number, since it is larger than the sum of its proper divisors (1).

13913807 is an equidigital number, since it uses as much as digits as its factorization.

13913807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 13913807 is about 3730.1215797880. The cubic root of 13913807 is about 240.5185950413.

The spelling of 13913807 in words is "thirteen million, nine hundred thirteen thousand, eight hundred seven".