13319891 has 8 divisors (see below), whose sum is σ = 15188544. Its totient is φ = 11571840.

The previous prime is 13319881. The next prime is 13319897. The reversal of 13319891 is 19891331.

13319891 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13319891 - 2⁶ = 13319827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13319897) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29915 + ... + 30356.

It is an arithmetic number, because the mean of its divisors is an integer number (1898568).

Almost surely, 2^13319891 is an apocalyptic number.

13319891 is a deficient number, since it is larger than the sum of its proper divisors (1868653).

13319891 is a wasteful number, since it uses less digits than its factorization.

13319891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60301.

The product of its digits is 5832, while the sum is 35.

The square root of 13319891 is about 3649.6425852404. The cubic root of 13319891 is about 237.0465052620.

The spelling of 13319891 in words is "thirteen million, three hundred nineteen thousand, eight hundred ninety-one".