12792391 has 8 divisors (see below), whose sum is σ = 13078080. Its totient is φ = 12509952.

The previous prime is 12792389. The next prime is 12792401. The reversal of 12792391 is 19329721.

It is a happy number.

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 12792391 - 2¹ = 12792389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12792331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8211 + ... + 9643.

It is an arithmetic number, because the mean of its divisors is an integer number (1634760).

Almost surely, 2^12792391 is an apocalyptic number.

12792391 is a deficient number, since it is larger than the sum of its proper divisors (285689).

12792391 is a wasteful number, since it uses less digits than its factorization.

12792391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1625.

The product of its digits is 6804, while the sum is 34.

The square root of 12792391 is about 3576.6452158412. The cubic root of 12792391 is about 233.8750580965.

The spelling of 12792391 in words is "twelve million, seven hundred ninety-two thousand, three hundred ninety-one".