13880769 has 12 divisors (see below), whose sum is σ = 21529584. Its totient is φ = 7931784.

The previous prime is 13880767. The next prime is 13880819. The reversal of 13880769 is 96708831.

It is not a de Polignac number, because 13880769 - 2¹ = 13880767 is a prime.

It is a super-2 number, since 2×13880769² = 385351496062722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13880769.

It is not an unprimeable number, because it can be changed into a prime (13880767) 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 in 11 ways as a sum of consecutive naturals, for example, 47067 + ... + 47360.

It is an arithmetic number, because the mean of its divisors is an integer number (1794132).

Almost surely, 2^13880769 is an apocalyptic number.

It is an amenable number.

13880769 is a deficient number, since it is larger than the sum of its proper divisors (7648815).

13880769 is an equidigital number, since it uses as much as digits as its factorization.

13880769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94444 (or 94437 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 13880769 is about 3725.6904058174. The cubic root of 13880769 is about 240.3280756278.

The spelling of 13880769 in words is "thirteen million, eight hundred eighty thousand, seven hundred sixty-nine".