28316097 has 12 divisors (see below), whose sum is σ = 40952340. Its totient is φ = 18853728.

The previous prime is 28316087. The next prime is 28316111. The reversal of 28316097 is 79061382.

It can be written as a sum of positive squares in 2 ways, for example, as 690561 + 27625536 = 831^2 + 5256^2 .

It is not a de Polignac number, because 28316097 - 2⁴ = 28316081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28316027) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8563 + ... + 11399.

It is an arithmetic number, because the mean of its divisors is an integer number (3412695).

Almost surely, 2^28316097 is an apocalyptic number.

It is an amenable number.

28316097 is a deficient number, since it is larger than the sum of its proper divisors (12636243).

28316097 is a wasteful number, since it uses less digits than its factorization.

28316097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3952 (or 3949 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 28316097 is about 5321.2871563185. The cubic root of 28316097 is about 304.7973104626.

The spelling of 28316097 in words is "twenty-eight million, three hundred sixteen thousand, ninety-seven".