12392856 has 96 divisors (see below), whose sum is σ = 39037440. Its totient is φ = 3478464.

The previous prime is 12392851. The next prime is 12392879. The reversal of 12392856 is 65829321.

12392856 is digitally balanced in base 2 and base 8, because in such bases 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 (36).

12392856 is strictly pandigital in base 8.

It is a self number, because there is not a number n which added to its sum of digits gives 12392856.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12392851) 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, 33585 + ... + 33951.

It is an arithmetic number, because the mean of its divisors is an integer number (406640).

Almost surely, 2^12392856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12392856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19518720).

12392856 is an abundant number, since it is smaller than the sum of its proper divisors (26644584).

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

12392856 is a wasteful number, since it uses less digits than its factorization.

12392856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453 (or 446 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 12392856 is about 3520.3488463503. The cubic root of 12392856 is about 231.4144468485.

It can be divided in two parts, 1239 and 2856, that added together give a triangular number (4095 = T₉₀).

The spelling of 12392856 in words is "twelve million, three hundred ninety-two thousand, eight hundred fifty-six".