28283677 has 2 divisors, whose sum is σ = 28283678. Its totient is φ = 28283676.

The previous prime is 28283669. The next prime is 28283681. The reversal of 28283677 is 77638282.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25613721 + 2669956 = 5061^2 + 1634^2 .

It is a cyclic number.

It is not a de Polignac number, because 28283677 - 2³ = 28283669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28283617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14141838 + 14141839.

It is an arithmetic number, because the mean of its divisors is an integer number (14141839).

Almost surely, 2^28283677 is an apocalyptic number.

It is an amenable number.

28283677 is a deficient number, since it is larger than the sum of its proper divisors (1).

28283677 is an equidigital number, since it uses as much as digits as its factorization.

28283677 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 225792, while the sum is 43.

The square root of 28283677 is about 5318.2400284305. The cubic root of 28283677 is about 304.6809419952.

The spelling of 28283677 in words is "twenty-eight million, two hundred eighty-three thousand, six hundred seventy-seven".