306766 has 8 divisors (see below), whose sum is σ = 463464. Its totient is φ = 152280.

The previous prime is 306763. The next prime is 306781. The reversal of 306766 is 667603.

306766 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (306763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145 + ... + 796.

It is an arithmetic number, because the mean of its divisors is an integer number (57933).

2³⁰⁶⁷⁶⁶ is an apocalyptic number.

306766 is a deficient number, since it is larger than the sum of its proper divisors (156698).

306766 is a wasteful number, since it uses less digits than its factorization.

306766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 306766 is about 553.8646043935. The cubic root of 306766 is about 67.4428230946.

The spelling of 306766 in words is "three hundred six thousand, seven hundred sixty-six".