13506799 has 4 divisors (see below), whose sum is σ = 13596400. Its totient is φ = 13417200.

The previous prime is 13506791. The next prime is 13506821. The reversal of 13506799 is 99760531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13506799 - 2³ = 13506791 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 (13506791) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44574 + ... + 44875.

It is an arithmetic number, because the mean of its divisors is an integer number (3399100).

Almost surely, 2^13506799 is an apocalyptic number.

13506799 is a deficient number, since it is larger than the sum of its proper divisors (89601).

13506799 is an equidigital number, since it uses as much as digits as its factorization.

13506799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89600.

The product of its (nonzero) digits is 51030, while the sum is 40.

The square root of 13506799 is about 3675.1597244202. The cubic root of 13506799 is about 238.1501241968.

The spelling of 13506799 in words is "thirteen million, five hundred six thousand, seven hundred ninety-nine".