13379643 has 12 divisors (see below), whose sum is σ = 19992960. Its totient is φ = 8612016.

The previous prime is 13379633. The next prime is 13379651. The reversal of 13379643 is 34697331.

13379643 is a `hidden beast` number, since 1 + 3 + 3 + 7 + 9 + 643 = 666.

13379643 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13379643 - 2⁴ = 13379627 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13379598 and 13379607.

It is not an unprimeable number, because it can be changed into a prime (13379623) by changing a digit.

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

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25371 + ... + 25892.

It is an arithmetic number, because the mean of its divisors is an integer number (1666080).

Almost surely, 2^13379643 is an apocalyptic number.

13379643 is a deficient number, since it is larger than the sum of its proper divisors (6613317).

13379643 is a wasteful number, since it uses less digits than its factorization.

13379643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51298 (or 51295 counting only the distinct ones).

The product of its digits is 40824, while the sum is 36.

The square root of 13379643 is about 3657.8194323941. The cubic root of 13379643 is about 237.4004339808.

The spelling of 13379643 in words is "thirteen million, three hundred seventy-nine thousand, six hundred forty-three".