8428099 has 2 divisors, whose sum is σ = 8428100. Its totient is φ = 8428098.

The previous prime is 8428081. The next prime is 8428139. The reversal of 8428099 is 9908248.

It is a happy number.

It is an a-pointer prime, because the next prime (8428139) can be obtained adding 8428099 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8428099 - 2¹⁷ = 8297027 is a prime.

It is not a weakly prime, because it can be changed into another prime (8438099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4214049 + 4214050.

It is an arithmetic number, because the mean of its divisors is an integer number (4214050).

Almost surely, 2^8428099 is an apocalyptic number.

8428099 is a deficient number, since it is larger than the sum of its proper divisors (1).

8428099 is an equidigital number, since it uses as much as digits as its factorization.

8428099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 8428099 is about 2903.1188401442. The cubic root of 8428099 is about 203.5056835460.

The spelling of 8428099 in words is "eight million, four hundred twenty-eight thousand, ninety-nine".