12833639 has 12 divisors (see below), whose sum is σ = 16078104. Its totient is φ = 10153584.

The previous prime is 12833617. The next prime is 12833647. The reversal of 12833639 is 93633821.

It is not a de Polignac number, because 12833639 - 2⁸ = 12833383 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12833599 and 12833608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12833699) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9437 + ... + 10710.

It is an arithmetic number, because the mean of its divisors is an integer number (1339842).

Almost surely, 2^12833639 is an apocalyptic number.

12833639 is a deficient number, since it is larger than the sum of its proper divisors (3244465).

12833639 is a wasteful number, since it uses less digits than its factorization.

12833639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20174 (or 20167 counting only the distinct ones).

The product of its digits is 23328, while the sum is 35.

The square root of 12833639 is about 3582.4068724811. The cubic root of 12833639 is about 234.1261586247.

The spelling of 12833639 in words is "twelve million, eight hundred thirty-three thousand, six hundred thirty-nine".