12633399 has 12 divisors (see below), whose sum is σ = 18837312. Its totient is φ = 8150400.

The previous prime is 12633389. The next prime is 12633407. The reversal of 12633399 is 99333621.

It is a happy number.

12633399 is a `hidden beast` number, since 1 + 263 + 3 + 399 = 666.

It is not a de Polignac number, because 12633399 - 2⁵ = 12633367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12633359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22362 + ... + 22919.

It is an arithmetic number, because the mean of its divisors is an integer number (1569776).

Almost surely, 2^12633399 is an apocalyptic number.

12633399 is a deficient number, since it is larger than the sum of its proper divisors (6203913).

12633399 is a wasteful number, since it uses less digits than its factorization.

12633399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45318 (or 45315 counting only the distinct ones).

The product of its digits is 26244, while the sum is 36.

The square root of 12633399 is about 3554.3493075386. The cubic root of 12633399 is about 232.9020998816.

The spelling of 12633399 in words is "twelve million, six hundred thirty-three thousand, three hundred ninety-nine".