12790493 has 4 divisors (see below), whose sum is σ = 13136220. Its totient is φ = 12444768.

The previous prime is 12790489. The next prime is 12790499. The reversal of 12790493 is 39409721.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7963684 + 4826809 = 2822^2 + 2197^2 .

It is a cyclic number.

It is not a de Polignac number, because 12790493 - 2² = 12790489 is a prime.

It is a super-2 number, since 2×12790493² = 327193422366098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12790499) 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 3 ways as a sum of consecutive naturals, for example, 172808 + ... + 172881.

It is an arithmetic number, because the mean of its divisors is an integer number (3284055).

Almost surely, 2^12790493 is an apocalyptic number.

It is an amenable number.

12790493 is a deficient number, since it is larger than the sum of its proper divisors (345727).

12790493 is an equidigital number, since it uses as much as digits as its factorization.

12790493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345726.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 12790493 is about 3576.3798735593. The cubic root of 12790493 is about 233.8634908866.

The spelling of 12790493 in words is "twelve million, seven hundred ninety thousand, four hundred ninety-three".