920806 has 4 divisors (see below), whose sum is σ = 1381212. Its totient is φ = 460402.

The previous prime is 920791. The next prime is 920807. The reversal of 920806 is 608029.

920806 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (920807) by changing a digit.

920806 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 as a sum of consecutive naturals, namely, 230200 + ... + 230203.

It is an arithmetic number, because the mean of its divisors is an integer number (345303).

2⁹²⁰⁸⁰⁶ is an apocalyptic number.

920806 is a deficient number, since it is larger than the sum of its proper divisors (460406).

920806 is a wasteful number, since it uses less digits than its factorization.

920806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460405.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 920806 is about 959.5863692237. The cubic root of 920806 is about 97.2872767444.

The spelling of 920806 in words is "nine hundred twenty thousand, eight hundred six".