12785829 has 16 divisors (see below), whose sum is σ = 19704960. Its totient is φ = 7223040.

The previous prime is 12785821. The next prime is 12785863. The reversal of 12785829 is 92858721.

It is not a de Polignac number, because 12785829 - 2³ = 12785821 is a prime.

It is a super-3 number, since 3×12785829³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12785821) 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, 1552 + ... + 5289.

It is an arithmetic number, because the mean of its divisors is an integer number (1231560).

Almost surely, 2^12785829 is an apocalyptic number.

It is an amenable number.

12785829 is a deficient number, since it is larger than the sum of its proper divisors (6919131).

12785829 is an equidigital number, since it uses as much as digits as its factorization.

12785829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6940.

The product of its digits is 80640, while the sum is 42.

The square root of 12785829 is about 3575.7277580934. The cubic root of 12785829 is about 233.8350616481.

The spelling of 12785829 in words is "twelve million, seven hundred eighty-five thousand, eight hundred twenty-nine".