13402879 has 8 divisors (see below), whose sum is σ = 15344640. Its totient is φ = 11467896.

The previous prime is 13402877. The next prime is 13402889. The reversal of 13402879 is 97820431.

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 13402879 - 2¹ = 13402877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13402871) 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, 3702 + ... + 6364.

It is an arithmetic number, because the mean of its divisors is an integer number (1918080).

Almost surely, 2^13402879 is an apocalyptic number.

13402879 is a deficient number, since it is larger than the sum of its proper divisors (1941761).

13402879 is an equidigital number, since it uses as much as digits as its factorization.

13402879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3389.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 13402879 is about 3660.9942638578. The cubic root of 13402879 is about 237.5377830932.

The spelling of 13402879 in words is "thirteen million, four hundred two thousand, eight hundred seventy-nine".