307866 has 16 divisors (see below), whose sum is σ = 663264. Its totient is φ = 94704.

The previous prime is 307859. The next prime is 307871. The reversal of 307866 is 668703.

It is an unprimeable number.

307866 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1896 + ... + 2051.

It is an arithmetic number, because the mean of its divisors is an integer number (41454).

2³⁰⁷⁸⁶⁶ is an apocalyptic number.

307866 is an abundant number, since it is smaller than the sum of its proper divisors (355398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

307866 is a wasteful number, since it uses less digits than its factorization.

307866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3965.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 307866 is about 554.8567382667. The cubic root of 307866 is about 67.5233389801.

The spelling of 307866 in words is "three hundred seven thousand, eight hundred sixty-six".