12028697 has 4 divisors (see below), whose sum is σ = 12055476. Its totient is φ = 12001920.

The previous prime is 12028693. The next prime is 12028699. The reversal of 12028697 is 79682021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10896601 + 1132096 = 3301^2 + 1064^2 .

It is a cyclic number.

It is not a de Polignac number, because 12028697 - 2² = 12028693 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12028693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12704 + ... + 13617.

It is an arithmetic number, because the mean of its divisors is an integer number (3013869).

Almost surely, 2^12028697 is an apocalyptic number.

It is an amenable number.

12028697 is a deficient number, since it is larger than the sum of its proper divisors (26779).

12028697 is an equidigital number, since it uses as much as digits as its factorization.

12028697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26778.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 12028697 is about 3468.2411969181. The cubic root of 12028697 is about 229.1252024743.

The spelling of 12028697 in words is "twelve million, twenty-eight thousand, six hundred ninety-seven".