12867829 has 8 divisors (see below), whose sum is σ = 13942040. Its totient is φ = 11875968.

The previous prime is 12867797. The next prime is 12867839. The reversal of 12867829 is 92876821.

12867829 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1205604 + 11662225 = 1098^2 + 3415^2 .

It is not a de Polignac number, because 12867829 - 2⁵ = 12867797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12867839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 732 + ... + 5125.

It is an arithmetic number, because the mean of its divisors is an integer number (1742755).

Almost surely, 2^12867829 is an apocalyptic number.

It is an amenable number.

12867829 is a deficient number, since it is larger than the sum of its proper divisors (1074211).

12867829 is an frugal number, since it uses more digits than its factorization.

12867829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5896 (or 5870 counting only the distinct ones).

The product of its digits is 96768, while the sum is 43.

The square root of 12867829 is about 3587.1756299351. The cubic root of 12867829 is about 234.3338855051. Note that the first 3 decimals are identical.

The spelling of 12867829 in words is "twelve million, eight hundred sixty-seven thousand, eight hundred twenty-nine".