28677307 has 2 divisors, whose sum is σ = 28677308. Its totient is φ = 28677306.

The previous prime is 28677287. The next prime is 28677349. The reversal of 28677307 is 70377682.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28677307 - 2⁷ = 28677179 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28677307.

It is not a weakly prime, because it can be changed into another prime (28677107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14338653 + 14338654.

It is an arithmetic number, because the mean of its divisors is an integer number (14338654).

Almost surely, 2^28677307 is an apocalyptic number.

28677307 is a deficient number, since it is larger than the sum of its proper divisors (1).

28677307 is an equidigital number, since it uses as much as digits as its factorization.

28677307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 98784, while the sum is 40.

The square root of 28677307 is about 5355.1196998760. The cubic root of 28677307 is about 306.0878718691.

The spelling of 28677307 in words is "twenty-eight million, six hundred seventy-seven thousand, three hundred seven".