28096722 has 24 divisors (see below), whose sum is σ = 61876620. Its totient is φ = 9211680.

The previous prime is 28096711. The next prime is 28096723. The reversal of 28096722 is 22769082.

It can be written as a sum of positive squares in 2 ways, for example, as 27973521 + 123201 = 5289^2 + 351^2 .

It is not an unprimeable number, because it can be changed into a prime (28096723) 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 11 ways as a sum of consecutive naturals, for example, 11697 + ... + 13892.

Almost surely, 2^28096722 is an apocalyptic number.

28096722 is an abundant number, since it is smaller than the sum of its proper divisors (33779898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28096722 is a wasteful number, since it uses less digits than its factorization.

28096722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25658 (or 25655 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 28096722 is about 5300.6341130095. The cubic root of 28096722 is about 304.0081441147.

The spelling of 28096722 in words is "twenty-eight million, ninety-six thousand, seven hundred twenty-two".