12773456 has 20 divisors (see below), whose sum is σ = 25602900. Its totient is φ = 6166272.

The previous prime is 12773447. The next prime is 12773459. The reversal of 12773456 is 65437721.

It can be written as a sum of positive squares in 2 ways, for example, as 5569600 + 7203856 = 2360^2 + 2684^2 .

It is a super-2 number, since 2×12773456² = 326322356367872, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12773459) 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, 13301 + ... + 14228.

It is an arithmetic number, because the mean of its divisors is an integer number (1280145).

Almost surely, 2^12773456 is an apocalyptic number.

12773456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12773456 is an abundant number, since it is smaller than the sum of its proper divisors (12829444).

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

12773456 is a wasteful number, since it uses less digits than its factorization.

12773456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27566 (or 27560 counting only the distinct ones).

The product of its digits is 35280, while the sum is 35.

The square root of 12773456 is about 3573.9972020135. The cubic root of 12773456 is about 233.7596089733.

The spelling of 12773456 in words is "twelve million, seven hundred seventy-three thousand, four hundred fifty-six".