766799 has 4 divisors (see below), whose sum is σ = 836520. Its totient is φ = 697080.

The previous prime is 766793. The next prime is 766807. The reversal of 766799 is 997667.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 997667 = 11 ⋅90697.

It is a cyclic number.

It is not a de Polignac number, because 766799 - 2⁸ = 766543 is a prime.

It is a Duffinian number.

It is a congruent number.

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

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34844 + ... + 34865.

It is an arithmetic number, because the mean of its divisors is an integer number (209130).

2⁷⁶⁶⁷⁹⁹ is an apocalyptic number.

766799 is a deficient number, since it is larger than the sum of its proper divisors (69721).

766799 is a wasteful number, since it uses less digits than its factorization.

766799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69720.

The product of its digits is 142884, while the sum is 44.

The square root of 766799 is about 875.6706001688. The cubic root of 766799 is about 91.5293783255.

The spelling of 766799 in words is "seven hundred sixty-six thousand, seven hundred ninety-nine".