8428873 has 2 divisors, whose sum is σ = 8428874. Its totient is φ = 8428872.

The previous prime is 8428867. The next prime is 8428891. The reversal of 8428873 is 3788248.

8428873 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5442889 + 2985984 = 2333^2 + 1728^2 .

It is a cyclic number.

It is not a de Polignac number, because 8428873 - 2¹³ = 8420681 is a prime.

It is not a weakly prime, because it can be changed into another prime (8422873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4214436 + 4214437.

It is an arithmetic number, because the mean of its divisors is an integer number (4214437).

Almost surely, 2^8428873 is an apocalyptic number.

It is an amenable number.

8428873 is a deficient number, since it is larger than the sum of its proper divisors (1).

8428873 is an equidigital number, since it uses as much as digits as its factorization.

8428873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 86016, while the sum is 40.

The square root of 8428873 is about 2903.2521419952. The cubic root of 8428873 is about 203.5119130479.

The spelling of 8428873 in words is "eight million, four hundred twenty-eight thousand, eight hundred seventy-three".