13049687 has 4 divisors (see below), whose sum is σ = 14913936. Its totient is φ = 11185440.

The previous prime is 13049677. The next prime is 13049719. The reversal of 13049687 is 78694031.

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

It is not a de Polignac number, because 13049687 - 2⁸ = 13049431 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13049687.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13049627) 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, 932114 + ... + 932127.

It is an arithmetic number, because the mean of its divisors is an integer number (3728484).

Almost surely, 2^13049687 is an apocalyptic number.

13049687 is a deficient number, since it is larger than the sum of its proper divisors (1864249).

13049687 is an equidigital number, since it uses as much as digits as its factorization.

13049687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1864248.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 13049687 is about 3612.4350513193. The cubic root of 13049687 is about 235.4326539938.

The spelling of 13049687 in words is "thirteen million, forty-nine thousand, six hundred eighty-seven".