12392985 has 16 divisors (see below), whose sum is σ = 21631680. Its totient is φ = 6008640.

The previous prime is 12392981. The next prime is 12393001. The reversal of 12392985 is 58929321.

12392985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12392985 - 2² = 12392981 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12392981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37390 + ... + 37719.

It is an arithmetic number, because the mean of its divisors is an integer number (1351980).

Almost surely, 2^12392985 is an apocalyptic number.

12392985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12392985 is a deficient number, since it is larger than the sum of its proper divisors (9238695).

12392985 is a wasteful number, since it uses less digits than its factorization.

12392985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75128.

The product of its digits is 38880, while the sum is 39.

The square root of 12392985 is about 3520.3671683505. The cubic root of 12392985 is about 231.4152497939.

It can be divided in two parts, 1239 and 2985, that added together give a palindrome (4224).

The spelling of 12392985 in words is "twelve million, three hundred ninety-two thousand, nine hundred eighty-five".