12830865 has 8 divisors (see below), whose sum is σ = 20529408. Its totient is φ = 6843120.

The previous prime is 12830821. The next prime is 12830879. The reversal of 12830865 is 56803821.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12830865 - 2⁹ = 12830353 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 427681 + ... + 427710.

It is an arithmetic number, because the mean of its divisors is an integer number (2566176).

Almost surely, 2^12830865 is an apocalyptic number.

12830865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12830865 is a deficient number, since it is larger than the sum of its proper divisors (7698543).

12830865 is an equidigital number, since it uses as much as digits as its factorization.

12830865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855399.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 12830865 is about 3582.0196816880. The cubic root of 12830865 is about 234.1092885651.

It can be divided in two parts, 12830 and 865, that added together give a triangular number (13695 = T₁₆₅).

The spelling of 12830865 in words is "twelve million, eight hundred thirty thousand, eight hundred sixty-five".