766868 has 6 divisors (see below), whose sum is σ = 1342026. Its totient is φ = 383432.

The previous prime is 766867. The next prime is 766873. The reversal of 766868 is 868667.

It can be written as a sum of positive squares in only one way, i.e., 620944 + 145924 = 788^2 + 382^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (766861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95855 + ... + 95862.

It is an arithmetic number, because the mean of its divisors is an integer number (223671).

2⁷⁶⁶⁸⁶⁸ is an apocalyptic number.

It is an amenable number.

766868 is a deficient number, since it is larger than the sum of its proper divisors (575158).

766868 is a wasteful number, since it uses less digits than its factorization.

766868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191721 (or 191719 counting only the distinct ones).

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

The square root of 766868 is about 875.7099976590. The cubic root of 766868 is about 91.5321236506.

The spelling of 766868 in words is "seven hundred sixty-six thousand, eight hundred sixty-eight".