13039823 has 2 divisors, whose sum is σ = 13039824. Its totient is φ = 13039822.

The previous prime is 13039777. The next prime is 13039841. The reversal of 13039823 is 32893031.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13039823 - 2⁶ = 13039759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13039843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6519911 + 6519912.

It is an arithmetic number, because the mean of its divisors is an integer number (6519912).

Almost surely, 2^13039823 is an apocalyptic number.

13039823 is a deficient number, since it is larger than the sum of its proper divisors (1).

13039823 is an equidigital number, since it uses as much as digits as its factorization.

13039823 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 29.

The square root of 13039823 is about 3611.0695091621. The cubic root of 13039823 is about 235.3733194143.

The spelling of 13039823 in words is "thirteen million, thirty-nine thousand, eight hundred twenty-three".