28698256 has 20 divisors (see below), whose sum is σ = 56125872. Its totient is φ = 14214176.

The previous prime is 28698253. The next prime is 28698287. The reversal of 28698256 is 65289682.

It is not an unprimeable number, because it can be changed into a prime (28698253) 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, 6670 + ... + 10093.

Almost surely, 2^28698256 is an apocalyptic number.

It is an amenable number.

28698256 is a deficient number, since it is larger than the sum of its proper divisors (27427616).

28698256 is a wasteful number, since it uses less digits than its factorization.

28698256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16878 (or 16872 counting only the distinct ones).

The product of its digits is 414720, while the sum is 46.

The square root of 28698256 is about 5357.0753214791. The cubic root of 28698256 is about 306.1623869327.

The spelling of 28698256 in words is "twenty-eight million, six hundred ninety-eight thousand, two hundred fifty-six".