766986 has 16 divisors (see below), whose sum is σ = 1673568. Its totient is φ = 232400.

The previous prime is 766967. The next prime is 766999. The reversal of 766986 is 689667.

It is a happy number.

It is an unprimeable number.

766986 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5745 + ... + 5876.

It is an arithmetic number, because the mean of its divisors is an integer number (104598).

2⁷⁶⁶⁹⁸⁶ is an apocalyptic number.

766986 is an abundant number, since it is smaller than the sum of its proper divisors (906582).

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

766986 is a wasteful number, since it uses less digits than its factorization.

766986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11637.

The product of its digits is 108864, while the sum is 42.

The square root of 766986 is about 875.7773689700. Note that the first 3 decimals coincide. The cubic root of 766986 is about 91.5368181729.

The spelling of 766986 in words is "seven hundred sixty-six thousand, nine hundred eighty-six".