12830985 has 48 divisors (see below), whose sum is σ = 24024000. Its totient is φ = 6314112.

The previous prime is 12830959. The next prime is 12830999. The reversal of 12830985 is 58903821.

It is not a de Polignac number, because 12830985 - 2⁶ = 12830921 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 36591 + ... + 36939.

It is an arithmetic number, because the mean of its divisors is an integer number (500500).

Almost surely, 2^12830985 is an apocalyptic number.

12830985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12830985 is a deficient number, since it is larger than the sum of its proper divisors (11193015).

12830985 is a wasteful number, since it uses less digits than its factorization.

12830985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422 (or 419 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 12830985 is about 3582.0364319755. The cubic root of 12830985 is about 234.1100183945.

It can be divided in two parts, 128 and 30985, that added together give a palindrome (31113).

The spelling of 12830985 in words is "twelve million, eight hundred thirty thousand, nine hundred eighty-five".