766606 has 4 divisors (see below), whose sum is σ = 1149912. Its totient is φ = 383302.

The previous prime is 766583. The next prime is 766609. The reversal of 766606 is 606667.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 606667 = 251 ⋅2417.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (766609) 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, 191650 + ... + 191653.

It is an arithmetic number, because the mean of its divisors is an integer number (287478).

2⁷⁶⁶⁶⁰⁶ is an apocalyptic number.

766606 is a deficient number, since it is larger than the sum of its proper divisors (383306).

766606 is a wasteful number, since it uses less digits than its factorization.

766606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383305.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 766606 is about 875.5603919776. The cubic root of 766606 is about 91.5216984979.

The spelling of 766606 in words is "seven hundred sixty-six thousand, six hundred six".