12313782 has 48 divisors (see below), whose sum is σ = 29811600. Its totient is φ = 3786912.

The previous prime is 12313759. The next prime is 12313783. The reversal of 12313782 is 28731321.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12313783) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5344 + ... + 7292.

It is an arithmetic number, because the mean of its divisors is an integer number (621075).

Almost surely, 2^12313782 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12313782, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14905800).

12313782 is an abundant number, since it is smaller than the sum of its proper divisors (17497818).

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

12313782 is a wasteful number, since it uses less digits than its factorization.

12313782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1979 (or 1967 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 12313782 is about 3509.0998845858. The cubic root of 12313782 is about 230.9212077372.

The spelling of 12313782 in words is "twelve million, three hundred thirteen thousand, seven hundred eighty-two".