7868394 has 32 divisors (see below), whose sum is σ = 18408000. Its totient is φ = 2484432.

The previous prime is 7868381. The next prime is 7868423. The reversal of 7868394 is 4938687.

It is a happy number.

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 15 ways as a sum of consecutive naturals, for example, 2809 + ... + 4860.

It is an arithmetic number, because the mean of its divisors is an integer number (575250).

Almost surely, 2^7868394 is an apocalyptic number.

7868394 is an abundant number, since it is smaller than the sum of its proper divisors (10539606).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7868394 is a wasteful number, since it uses less digits than its factorization.

7868394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7699 (or 7693 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 7868394 is about 2805.0657746299. The cubic root of 7868394 is about 198.8972138227.

It can be divided in two parts, 786 and 8394, that added together give a triangular number (9180 = T₁₃₅).

The spelling of 7868394 in words is "seven million, eight hundred sixty-eight thousand, three hundred ninety-four".