8428161 has 8 divisors (see below), whose sum is σ = 12842944. Its totient is φ = 4816080.

The previous prime is 8428159. The next prime is 8428163. The reversal of 8428161 is 1618248.

8428161 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (8428159) and next prime (8428163).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8428161 - 2¹ = 8428159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8428163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200650 + ... + 200691.

It is an arithmetic number, because the mean of its divisors is an integer number (1605368).

Almost surely, 2^8428161 is an apocalyptic number.

It is an amenable number.

8428161 is a deficient number, since it is larger than the sum of its proper divisors (4414783).

8428161 is a wasteful number, since it uses less digits than its factorization.

8428161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401351.

The product of its digits is 3072, while the sum is 30.

The square root of 8428161 is about 2903.1295182957. The cubic root of 8428161 is about 203.5061825640.

The spelling of 8428161 in words is "eight million, four hundred twenty-eight thousand, one hundred sixty-one".