13880899 has 2 divisors, whose sum is σ = 13880900. Its totient is φ = 13880898.

The previous prime is 13880861. The next prime is 13880903. The reversal of 13880899 is 99808831.

It is a strong prime.

It is an emirp because it is prime and its reverse (99808831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13880899 - 2¹³ = 13872707 is a prime.

It is not a weakly prime, because it can be changed into another prime (13880819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6940449 + 6940450.

It is an arithmetic number, because the mean of its divisors is an integer number (6940450).

Almost surely, 2^13880899 is an apocalyptic number.

13880899 is a deficient number, since it is larger than the sum of its proper divisors (1).

13880899 is an equidigital number, since it uses as much as digits as its factorization.

13880899 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 46.

The square root of 13880899 is about 3725.7078522074. The cubic root of 13880899 is about 240.3288258877.

It can be divided in two parts, 1 and 3880899, that added together give a square (3880900 = 1970²).

The spelling of 13880899 in words is "thirteen million, eight hundred eighty thousand, eight hundred ninety-nine".