7868818 has 8 divisors (see below), whose sum is σ = 11865600. Its totient is φ = 3913620.

The previous prime is 7868813. The next prime is 7868821. The reversal of 7868818 is 8188687.

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

It is not an unprimeable number, because it can be changed into a prime (7868813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9918 + ... + 10681.

It is an arithmetic number, because the mean of its divisors is an integer number (1483200).

Almost surely, 2^7868818 is an apocalyptic number.

7868818 is a deficient number, since it is larger than the sum of its proper divisors (3996782).

7868818 is a wasteful number, since it uses less digits than its factorization.

7868818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20792.

The product of its digits is 172032, while the sum is 46.

The square root of 7868818 is about 2805.1413511622. The cubic root of 7868818 is about 198.9007863817.

It can be divided in two parts, 786 and 8818, that added together give a square (9604 = 98²).

The spelling of 7868818 in words is "seven million, eight hundred sixty-eight thousand, eight hundred eighteen".