12393776 has 40 divisors (see below), whose sum is σ = 25742400. Its totient is φ = 5762880.

The previous prime is 12393743. The next prime is 12393791. The reversal of 12393776 is 67739321.

12393776 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17591 + ... + 18281.

It is an arithmetic number, because the mean of its divisors is an integer number (643560).

Almost surely, 2^12393776 is an apocalyptic number.

12393776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12393776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12871200).

12393776 is an abundant number, since it is smaller than the sum of its proper divisors (13348624).

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

12393776 is a wasteful number, since it uses less digits than its factorization.

12393776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777 (or 771 counting only the distinct ones).

The product of its digits is 47628, while the sum is 38.

The square root of 12393776 is about 3520.4795127937. The cubic root of 12393776 is about 231.4201731589.

The spelling of 12393776 in words is "twelve million, three hundred ninety-three thousand, seven hundred seventy-six".