786668 has 12 divisors (see below), whose sum is σ = 1385160. Its totient is φ = 390912.

The previous prime is 786661. The next prime is 786673. The reversal of 786668 is 866687.

It is not an unprimeable number, because it can be changed into a prime (786661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 263 + ... + 1281.

It is an arithmetic number, because the mean of its divisors is an integer number (115430).

2⁷⁸⁶⁶⁶⁸ is an apocalyptic number.

It is an amenable number.

786668 is a deficient number, since it is larger than the sum of its proper divisors (598492).

786668 is a wasteful number, since it uses less digits than its factorization.

786668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1216 (or 1214 counting only the distinct ones).

The product of its digits is 96768, while the sum is 41.

The square root of 786668 is about 886.9430646890. The cubic root of 786668 is about 92.3132047278.

The spelling of 786668 in words is "seven hundred eighty-six thousand, six hundred sixty-eight".