12839491 has 8 divisors (see below), whose sum is σ = 14757120. Its totient is φ = 10942728.

The previous prime is 12839483. The next prime is 12839501. The reversal of 12839491 is 19493821.

12839491 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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 12839491 - 2³ = 12839483 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12839491.

It is not an unprimeable number, because it can be changed into a prime (12839401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3871 + ... + 6376.

It is an arithmetic number, because the mean of its divisors is an integer number (1844640).

Almost surely, 2^12839491 is an apocalyptic number.

12839491 is a deficient number, since it is larger than the sum of its proper divisors (1917629).

12839491 is a wasteful number, since it uses less digits than its factorization.

12839491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10433.

The product of its digits is 15552, while the sum is 37.

The square root of 12839491 is about 3583.2235487058. The cubic root of 12839491 is about 234.1617395456.

The spelling of 12839491 in words is "twelve million, eight hundred thirty-nine thousand, four hundred ninety-one".