12789634 has 32 divisors (see below), whose sum is σ = 22752576. Its totient is φ = 5315520.

The previous prime is 12789631. The next prime is 12789649. The reversal of 12789634 is 43698721.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (12789631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56229 + ... + 56455.

It is an arithmetic number, because the mean of its divisors is an integer number (711018).

Almost surely, 2^12789634 is an apocalyptic number.

12789634 is a deficient number, since it is larger than the sum of its proper divisors (9962942).

12789634 is a wasteful number, since it uses less digits than its factorization.

12789634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450.

The product of its digits is 72576, while the sum is 40.

The square root of 12789634 is about 3576.2597780363. The cubic root of 12789634 is about 233.8582554033.

The spelling of 12789634 in words is "twelve million, seven hundred eighty-nine thousand, six hundred thirty-four".