28454177 has 2 divisors, whose sum is σ = 28454178. Its totient is φ = 28454176.

The previous prime is 28454161. The next prime is 28454201. The reversal of 28454177 is 77145482.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20394256 + 8059921 = 4516^2 + 2839^2 .

It is a cyclic number.

It is not a de Polignac number, because 28454177 - 2⁴ = 28454161 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 28454177.

It is not a weakly prime, because it can be changed into another prime (28454137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14227088 + 14227089.

It is an arithmetic number, because the mean of its divisors is an integer number (14227089).

Almost surely, 2^28454177 is an apocalyptic number.

It is an amenable number.

28454177 is a deficient number, since it is larger than the sum of its proper divisors (1).

28454177 is an equidigital number, since it uses as much as digits as its factorization.

28454177 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62720, while the sum is 38.

The square root of 28454177 is about 5334.2456823810. The cubic root of 28454177 is about 305.2919429867.

The spelling of 28454177 in words is "twenty-eight million, four hundred fifty-four thousand, one hundred seventy-seven".