8428618 has 24 divisors (see below), whose sum is σ = 14387940. Its totient is φ = 3696000.

The previous prime is 8428613. The next prime is 8428631. The reversal of 8428618 is 8168248.

It can be written as a sum of positive squares in 2 ways, for example, as 7382089 + 1046529 = 2717^2 + 1023^2 .

It is not an unprimeable number, because it can be changed into a prime (8428613) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6418 + ... + 7618.

Almost surely, 2^8428618 is an apocalyptic number.

8428618 is a deficient number, since it is larger than the sum of its proper divisors (5959322).

8428618 is a wasteful number, since it uses less digits than its factorization.

8428618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1254 (or 1243 counting only the distinct ones).

The product of its digits is 24576, while the sum is 37.

The square root of 8428618 is about 2903.2082253948. The cubic root of 8428618 is about 203.5098607347.

The spelling of 8428618 in words is "eight million, four hundred twenty-eight thousand, six hundred eighteen".