12391704 has 80 divisors (see below), whose sum is σ = 37403520. Its totient is φ = 3810240.

The previous prime is 12391699. The next prime is 12391727. The reversal of 12391704 is 40719321.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7689 + ... + 9159.

It is an arithmetic number, because the mean of its divisors is an integer number (467544).

Almost surely, 2^12391704 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 12391704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18701760).

12391704 is an abundant number, since it is smaller than the sum of its proper divisors (25011816).

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

12391704 is a wasteful number, since it uses less digits than its factorization.

12391704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1502 (or 1489 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 12391704 is about 3520.1852223995. The cubic root of 12391704 is about 231.4072761123.

The spelling of 12391704 in words is "twelve million, three hundred ninety-one thousand, seven hundred four".