7868678 has 4 divisors (see below), whose sum is σ = 11803020. Its totient is φ = 3934338.

The previous prime is 7868677. The next prime is 7868687. The reversal of 7868678 is 8768687.

It is a happy number.

7868678 is nontrivially palindromic in base 11 and base 12.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7868677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1967168 + ... + 1967171.

It is an arithmetic number, because the mean of its divisors is an integer number (2950755).

Almost surely, 2^7868678 is an apocalyptic number.

7868678 is a deficient number, since it is larger than the sum of its proper divisors (3934342).

7868678 is a wasteful number, since it uses less digits than its factorization.

7868678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3934341.

The product of its digits is 903168, while the sum is 50.

The square root of 7868678 is about 2805.1163968720. The cubic root of 7868678 is about 198.8996067773.

Subtracting 7868678 from its reverse (8768687), we obtain a palindrome (900009).

The spelling of 7868678 in words is "seven million, eight hundred sixty-eight thousand, six hundred seventy-eight".