7993618 has 16 divisors (see below), whose sum is σ = 12473280. Its totient is φ = 3837456.

The previous prime is 7993577. The next prime is 7993651. The reversal of 7993618 is 8163997.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16171 + ... + 16657.

It is an arithmetic number, because the mean of its divisors is an integer number (779580).

Almost surely, 2^7993618 is an apocalyptic number.

7993618 is a deficient number, since it is larger than the sum of its proper divisors (4479662).

7993618 is a wasteful number, since it uses less digits than its factorization.

7993618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801.

The product of its digits is 81648, while the sum is 43.

The square root of 7993618 is about 2827.2987107838. The cubic root of 7993618 is about 199.9468025181.

The spelling of 7993618 in words is "seven million, nine hundred ninety-three thousand, six hundred eighteen".