12582789 has 16 divisors (see below), whose sum is σ = 17352192. Its totient is φ = 8105328.

The previous prime is 12582767. The next prime is 12582797. The reversal of 12582789 is 98728521.

It is not a de Polignac number, because 12582789 - 2¹¹ = 12580741 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12582789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12582799) 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, 12814 + ... + 13760.

It is an arithmetic number, because the mean of its divisors is an integer number (1084512).

Almost surely, 2^12582789 is an apocalyptic number.

It is an amenable number.

12582789 is a deficient number, since it is larger than the sum of its proper divisors (4769403).

12582789 is a wasteful number, since it uses less digits than its factorization.

12582789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1096.

The product of its digits is 80640, while the sum is 42.

The square root of 12582789 is about 3547.2227164361. Note that the first 3 decimals coincide. The cubic root of 12582789 is about 232.5906780071.

The spelling of 12582789 in words is "twelve million, five hundred eighty-two thousand, seven hundred eighty-nine".