764666 has 16 divisors (see below), whose sum is σ = 1322304.
Its totient is φ = 324864.
The previous prime is 764657. The next prime is 764683. The reversal of 764666 is 666467.
It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 764666.
It is an unprimeable number.
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 7 ways as a sum of consecutive naturals, for example, 2561 + ... + 2843.
It is an arithmetic number, because the mean of its divisors is an integer number (82644).
2764666 is an apocalyptic number.
764666 is a deficient number, since it is larger than the sum of its proper divisors (557638).
764666 is a wasteful number, since it uses less digits than its factorization.
764666 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 485.
The product of its digits is 36288, while the sum is 35.
The square root of 764666 is about 874.4518282902.
The cubic root of 764666 is about 91.4444306101.
Note that the first 4 decimals are identical.
The spelling of 764666 in words is "seven hundred sixty-four thousand, six hundred sixty-six".