12983869 has 4 divisors (see below), whose sum is σ = 13747644. Its totient is φ = 12220096.

The previous prime is 12983857. The next prime is 12983879. The reversal of 12983869 is 96838921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 96838921 = 283 ⋅342187.

It can be written as a sum of positive squares in 2 ways, for example, as 4251844 + 8732025 = 2062^2 + 2955^2 .

It is a cyclic number.

It is not a de Polignac number, because 12983869 - 2⁵ = 12983837 is a prime.

It is a super-2 number, since 2×12983869² = 337161708418322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12983819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 381862 + ... + 381895.

It is an arithmetic number, because the mean of its divisors is an integer number (3436911).

Almost surely, 2^12983869 is an apocalyptic number.

It is an amenable number.

12983869 is a deficient number, since it is larger than the sum of its proper divisors (763775).

12983869 is an equidigital number, since it uses as much as digits as its factorization.

12983869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763774.

The product of its digits is 186624, while the sum is 46.

The square root of 12983869 is about 3603.3136138838. The cubic root of 12983869 is about 235.0361736981.

The spelling of 12983869 in words is "twelve million, nine hundred eighty-three thousand, eight hundred sixty-nine".