28656296 has 16 divisors (see below), whose sum is σ = 54467700. Its totient is φ = 14131584.

The previous prime is 28656293. The next prime is 28656311. The reversal of 28656296 is 69265682.

It can be written as a sum of positive squares in 2 ways, for example, as 25867396 + 2788900 = 5086^2 + 1670^2 .

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (28656293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23951 + ... + 25118.

Almost surely, 2^28656296 is an apocalyptic number.

It is an amenable number.

28656296 is a deficient number, since it is larger than the sum of its proper divisors (25811404).

28656296 is a wasteful number, since it uses less digits than its factorization.

28656296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49148 (or 49144 counting only the distinct ones).

The product of its digits is 311040, while the sum is 44.

The square root of 28656296 is about 5353.1575728723. The cubic root of 28656296 is about 306.0130998137.

The spelling of 28656296 in words is "twenty-eight million, six hundred fifty-six thousand, two hundred ninety-six".