766790 has 8 divisors (see below), whose sum is σ = 1380240. Its totient is φ = 306712.

The previous prime is 766769. The next prime is 766793. The reversal of 766790 is 97667.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 766790.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (766793) by changing a digit.

766790 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 in 3 ways as a sum of consecutive naturals, for example, 38330 + ... + 38349.

It is an arithmetic number, because the mean of its divisors is an integer number (172530).

2⁷⁶⁶⁷⁹⁰ is an apocalyptic number.

766790 is a deficient number, since it is larger than the sum of its proper divisors (613450).

766790 is a wasteful number, since it uses less digits than its factorization.

766790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76686.

The product of its (nonzero) digits is 15876, while the sum is 35.

The square root of 766790 is about 875.6654612351. The cubic root of 766790 is about 91.5290202275.

The spelling of 766790 in words is "seven hundred sixty-six thousand, seven hundred ninety".