12791390 has 16 divisors (see below), whose sum is σ = 23263632. Its totient is φ = 5063424.

The previous prime is 12791353. The next prime is 12791393. The reversal of 12791390 is 9319721.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12791393) 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, 5624 + ... + 7563.

It is an arithmetic number, because the mean of its divisors is an integer number (1453977).

Almost surely, 2^12791390 is an apocalyptic number.

12791390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12791390 is a deficient number, since it is larger than the sum of its proper divisors (10472242).

12791390 is a wasteful number, since it uses less digits than its factorization.

12791390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13291.

The product of its (nonzero) digits is 3402, while the sum is 32.

The square root of 12791390 is about 3576.5052775020. The cubic root of 12791390 is about 233.8689577243.

The spelling of 12791390 in words is "twelve million, seven hundred ninety-one thousand, three hundred ninety".