28726177 has 2 divisors, whose sum is σ = 28726178. Its totient is φ = 28726176.

The previous prime is 28726163. The next prime is 28726189. The reversal of 28726177 is 77162782.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26873856 + 1852321 = 5184^2 + 1361^2 .

It is a cyclic number.

It is not a de Polignac number, because 28726177 - 2¹⁵ = 28693409 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (28726147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14363088 + 14363089.

It is an arithmetic number, because the mean of its divisors is an integer number (14363089).

Almost surely, 2^28726177 is an apocalyptic number.

It is an amenable number.

28726177 is a deficient number, since it is larger than the sum of its proper divisors (1).

28726177 is an equidigital number, since it uses as much as digits as its factorization.

28726177 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 65856, while the sum is 40.

The square root of 28726177 is about 5359.6806807869. The cubic root of 28726177 is about 306.2616448717.

The spelling of 28726177 in words is "twenty-eight million, seven hundred twenty-six thousand, one hundred seventy-seven".