12779484 has 12 divisors (see below), whose sum is σ = 29818824. Its totient is φ = 4259824.

The previous prime is 12779483. The next prime is 12779531. The reversal of 12779484 is 48497721.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×12779484² = 326630422612512, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12779483) 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, 532467 + ... + 532490.

It is an arithmetic number, because the mean of its divisors is an integer number (2484902).

Almost surely, 2^12779484 is an apocalyptic number.

It is an amenable number.

12779484 is an abundant number, since it is smaller than the sum of its proper divisors (17039340).

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

12779484 is a wasteful number, since it uses less digits than its factorization.

12779484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1064964 (or 1064962 counting only the distinct ones).

The product of its digits is 112896, while the sum is 42.

The square root of 12779484 is about 3574.8404160186. The cubic root of 12779484 is about 233.7963748342.

The spelling of 12779484 in words is "twelve million, seven hundred seventy-nine thousand, four hundred eighty-four".