12779322 has 8 divisors (see below), whose sum is σ = 25558656. Its totient is φ = 4259772.

The previous prime is 12779321. The next prime is 12779339. The reversal of 12779322 is 22397721.

It is a sphenic number, since it is the product of 3 distinct primes.

12779322 is an admirable number.

It is a super-2 number, since 2×12779322² = 326622141559368, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12779321) 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, 1064938 + ... + 1064949.

It is an arithmetic number, because the mean of its divisors is an integer number (3194832).

Almost surely, 2^12779322 is an apocalyptic number.

12779322 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12779322 is a wasteful number, since it uses less digits than its factorization.

12779322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2129892.

The product of its digits is 10584, while the sum is 33.

The square root of 12779322 is about 3574.8177575927. The cubic root of 12779322 is about 233.7953869182.

The spelling of 12779322 in words is "twelve million, seven hundred seventy-nine thousand, three hundred twenty-two".