12697028 has 24 divisors (see below), whose sum is σ = 23920344. Its totient is φ = 5875200.

The previous prime is 12697021. The next prime is 12697037. The reversal of 12697028 is 82079621.

It is a happy number.

12697028 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3161284 + 9535744 = 1778^2 + 3088^2 .

It is a super-2 number, since 2×12697028² = 322429040065568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12697021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2618 + ... + 5678.

It is an arithmetic number, because the mean of its divisors is an integer number (996681).

Almost surely, 2^12697028 is an apocalyptic number.

It is an amenable number.

12697028 is a deficient number, since it is larger than the sum of its proper divisors (11223316).

12697028 is a wasteful number, since it uses less digits than its factorization.

12697028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3143 (or 3141 counting only the distinct ones).

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

The square root of 12697028 is about 3563.2889301880. The cubic root of 12697028 is about 233.2924545167.

The spelling of 12697028 in words is "twelve million, six hundred ninety-seven thousand, twenty-eight".