13791379 has 16 divisors (see below), whose sum is σ = 16175808. Its totient is φ = 11515392.

The previous prime is 13791377. The next prime is 13791389. The reversal of 13791379 is 97319731.

It is a happy number.

It is not a de Polignac number, because 13791379 - 2¹ = 13791377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13791377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is an upside-down number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69909 + ... + 70105.

It is an arithmetic number, because the mean of its divisors is an integer number (1010988).

Almost surely, 2^13791379 is an apocalyptic number.

13791379 is a deficient number, since it is larger than the sum of its proper divisors (2384429).

13791379 is a wasteful number, since it uses less digits than its factorization.

13791379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414.

The product of its digits is 35721, while the sum is 40.

The square root of 13791379 is about 3713.6745953301. The cubic root of 13791379 is about 239.8110723803.

The spelling of 13791379 in words is "thirteen million, seven hundred ninety-one thousand, three hundred seventy-nine".