12633985 has 16 divisors (see below), whose sum is σ = 18660096. Its totient is φ = 7996608.

The previous prime is 12633979. The next prime is 12633997. The reversal of 12633985 is 58933621.

It is a cyclic number.

It is not a de Polignac number, because 12633985 - 2³ = 12633977 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13429 + ... + 14338.

It is an arithmetic number, because the mean of its divisors is an integer number (1166256).

Almost surely, 2^12633985 is an apocalyptic number.

It is an amenable number.

12633985 is a deficient number, since it is larger than the sum of its proper divisors (6026111).

12633985 is a wasteful number, since it uses less digits than its factorization.

12633985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27792.

The product of its digits is 38880, while the sum is 37.

The square root of 12633985 is about 3554.4317407991. The cubic root of 12633985 is about 232.9057008793.

The spelling of 12633985 in words is "twelve million, six hundred thirty-three thousand, nine hundred eighty-five".