12779073 has 16 divisors (see below), whose sum is σ = 19244800. Its totient is φ = 8378640.

The previous prime is 12779069. The next prime is 12779083. The reversal of 12779073 is 37097721.

12779073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12779073 - 2² = 12779069 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12779083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2233 + ... + 5526.

It is an arithmetic number, because the mean of its divisors is an integer number (1202800).

Almost surely, 2^12779073 is an apocalyptic number.

It is an amenable number.

12779073 is a deficient number, since it is larger than the sum of its proper divisors (6465727).

12779073 is an equidigital number, since it uses as much as digits as its factorization.

12779073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7829 (or 7823 counting only the distinct ones).

The product of its (nonzero) digits is 18522, while the sum is 36.

The square root of 12779073 is about 3574.7829304728. The cubic root of 12779073 is about 233.7938684383.

The spelling of 12779073 in words is "twelve million, seven hundred seventy-nine thousand, seventy-three".