28296973 has 2 divisors, whose sum is σ = 28296974. Its totient is φ = 28296972.

The previous prime is 28296949. The next prime is 28296977. The reversal of 28296973 is 37969282.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27910089 + 386884 = 5283^2 + 622^2 .

It is a cyclic number.

It is not a de Polignac number, because 28296973 - 2⁹ = 28296461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28296977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14148486 + 14148487.

It is an arithmetic number, because the mean of its divisors is an integer number (14148487).

Almost surely, 2^28296973 is an apocalyptic number.

It is an amenable number.

28296973 is a deficient number, since it is larger than the sum of its proper divisors (1).

28296973 is an equidigital number, since it uses as much as digits as its factorization.

28296973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 46.

The square root of 28296973 is about 5319.4899191558. The cubic root of 28296973 is about 304.7286774573.

The spelling of 28296973 in words is "twenty-eight million, two hundred ninety-six thousand, nine hundred seventy-three".