12345724 has 12 divisors (see below), whose sum is σ = 21848400. Its totient is φ = 6103328.

The previous prime is 12345713. The next prime is 12345727. The reversal of 12345724 is 42754321.

It is a junction number, because it is equal to n+sod(n) for n = 12345692 and 12345701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12345727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16984 + ... + 17695.

It is an arithmetic number, because the mean of its divisors is an integer number (1820700).

Almost surely, 2^12345724 is an apocalyptic number.

It is an amenable number.

12345724 is a deficient number, since it is larger than the sum of its proper divisors (9502676).

12345724 is a wasteful number, since it uses less digits than its factorization.

12345724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34772 (or 34770 counting only the distinct ones).

The product of its digits is 6720, while the sum is 28.

The square root of 12345724 is about 3513.6482464811. The cubic root of 12345724 is about 231.1207055175.

The spelling of 12345724 in words is "twelve million, three hundred forty-five thousand, seven hundred twenty-four".