12028785 has 16 divisors (see below), whose sum is σ = 19716480. Its totient is φ = 6258560.

The previous prime is 12028781. The next prime is 12028787. The reversal of 12028785 is 58782021.

It is not a de Polignac number, because 12028785 - 2² = 12028781 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12028781) 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, 9165 + ... + 10394.

It is an arithmetic number, because the mean of its divisors is an integer number (1232280).

Almost surely, 2^12028785 is an apocalyptic number.

12028785 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12028785 is a deficient number, since it is larger than the sum of its proper divisors (7687695).

12028785 is a wasteful number, since it uses less digits than its factorization.

12028785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19608.

The product of its (nonzero) digits is 8960, while the sum is 33.

The square root of 12028785 is about 3468.2538834405. The cubic root of 12028785 is about 229.1257612205.

The spelling of 12028785 in words is "twelve million, twenty-eight thousand, seven hundred eighty-five".