920666 has 8 divisors (see below), whose sum is σ = 1398720. Its totient is φ = 454428.

The previous prime is 920653. The next prime is 920677. The reversal of 920666 is 666029.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2756 + ... + 3071.

It is an arithmetic number, because the mean of its divisors is an integer number (174840).

2⁹²⁰⁶⁶⁶ is an apocalyptic number.

920666 is a deficient number, since it is larger than the sum of its proper divisors (478054).

920666 is a wasteful number, since it uses less digits than its factorization.

920666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5908.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 920666 is about 959.5134183533. The cubic root of 920666 is about 97.2823459522.

The spelling of 920666 in words is "nine hundred twenty thousand, six hundred sixty-six".