13038691 has 2 divisors, whose sum is σ = 13038692. Its totient is φ = 13038690.

The previous prime is 13038673. The next prime is 13038703. The reversal of 13038691 is 19683031.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13038691 - 2¹³ = 13030499 is a prime.

It is not a weakly prime, because it can be changed into another prime (13038601) 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 as a sum of consecutive naturals, namely, 6519345 + 6519346.

It is an arithmetic number, because the mean of its divisors is an integer number (6519346).

Almost surely, 2^13038691 is an apocalyptic number.

13038691 is a deficient number, since it is larger than the sum of its proper divisors (1).

13038691 is an equidigital number, since it uses as much as digits as its factorization.

13038691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 13038691 is about 3610.9127654930. The cubic root of 13038691 is about 235.3665082199.

The spelling of 13038691 in words is "thirteen million, thirty-eight thousand, six hundred ninety-one".