28659677 has 2 divisors, whose sum is σ = 28659678. Its totient is φ = 28659676.

The previous prime is 28659661. The next prime is 28659713. The reversal of 28659677 is 77695682.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25512601 + 3147076 = 5051^2 + 1774^2 .

It is a cyclic number.

It is not a de Polignac number, because 28659677 - 2⁴ = 28659661 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28659607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14329838 + 14329839.

It is an arithmetic number, because the mean of its divisors is an integer number (14329839).

Almost surely, 2^28659677 is an apocalyptic number.

It is an amenable number.

28659677 is a deficient number, since it is larger than the sum of its proper divisors (1).

28659677 is an equidigital number, since it uses as much as digits as its factorization.

28659677 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1270080, while the sum is 50.

The square root of 28659677 is about 5353.4733584842. The cubic root of 28659677 is about 306.0251342790.

The spelling of 28659677 in words is "twenty-eight million, six hundred fifty-nine thousand, six hundred seventy-seven".