12792621 has 4 divisors (see below), whose sum is σ = 17056832. Its totient is φ = 8528412.

The previous prime is 12792613. The next prime is 12792631. The reversal of 12792621 is 12629721.

12792621 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 semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 12792621 - 2³ = 12792613 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 (12792631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2132101 + ... + 2132106.

It is an arithmetic number, because the mean of its divisors is an integer number (4264208).

Almost surely, 2^12792621 is an apocalyptic number.

It is an amenable number.

12792621 is a deficient number, since it is larger than the sum of its proper divisors (4264211).

12792621 is an equidigital number, since it uses as much as digits as its factorization.

12792621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4264210.

The product of its digits is 3024, while the sum is 30.

The square root of 12792621 is about 3576.6773687320. The cubic root of 12792621 is about 233.8764597355.

The spelling of 12792621 in words is "twelve million, seven hundred ninety-two thousand, six hundred twenty-one".