7868345 has 4 divisors (see below), whose sum is σ = 9442020. Its totient is φ = 6294672.

The previous prime is 7868339. The next prime is 7868353. The reversal of 7868345 is 5438687.

It is a happy number.

7868345 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5438687 = 727 ⋅7481.

It can be written as a sum of positive squares in 2 ways, for example, as 3041536 + 4826809 = 1744^2 + 2197^2 .

It is a cyclic number.

It is not a de Polignac number, because 7868345 - 2⁸ = 7868089 is a prime.

It is a Curzon number.

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 3 ways as a sum of consecutive naturals, for example, 786830 + ... + 786839.

It is an arithmetic number, because the mean of its divisors is an integer number (2360505).

Almost surely, 2^7868345 is an apocalyptic number.

It is an amenable number.

7868345 is a deficient number, since it is larger than the sum of its proper divisors (1573675).

7868345 is a wasteful number, since it uses less digits than its factorization.

7868345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1573674.

The product of its digits is 161280, while the sum is 41.

The square root of 7868345 is about 2805.0570404183. The cubic root of 7868345 is about 198.8968009480.

The spelling of 7868345 in words is "seven million, eight hundred sixty-eight thousand, three hundred forty-five".