7868306 has 4 divisors (see below), whose sum is σ = 11802462. Its totient is φ = 3934152.

The previous prime is 7868293. The next prime is 7868339. The reversal of 7868306 is 6038687.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6038687 = 311 ⋅19417.

It can be written as a sum of positive squares in only one way, i.e., 4774225 + 3094081 = 2185^2 + 1759^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 7868306.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1967075 + ... + 1967078.

Almost surely, 2^7868306 is an apocalyptic number.

7868306 is a deficient number, since it is larger than the sum of its proper divisors (3934156).

7868306 is a wasteful number, since it uses less digits than its factorization.

7868306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3934155.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 7868306 is about 2805.0500886793. The cubic root of 7868306 is about 198.8964723322.

The spelling of 7868306 in words is "seven million, eight hundred sixty-eight thousand, three hundred six".