13039691 has 8 divisors (see below), whose sum is σ = 14926080. Its totient is φ = 11159208.

The previous prime is 13039673. The next prime is 13039703. The reversal of 13039691 is 19693031.

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 13039691 - 2¹⁸ = 12777547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13039291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5420 + ... + 7446.

It is an arithmetic number, because the mean of its divisors is an integer number (1865760).

Almost surely, 2^13039691 is an apocalyptic number.

13039691 is a deficient number, since it is larger than the sum of its proper divisors (1886389).

13039691 is an equidigital number, since it uses as much as digits as its factorization.

13039691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2953.

The product of its (nonzero) digits is 4374, while the sum is 32.

The square root of 13039691 is about 3611.0512319822. The cubic root of 13039691 is about 235.3725251964.

The spelling of 13039691 in words is "thirteen million, thirty-nine thousand, six hundred ninety-one".