920636 has 24 divisors (see below), whose sum is σ = 1693440. Its totient is φ = 437552.

The previous prime is 920609. The next prime is 920641. The reversal of 920636 is 636029.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

920636 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, 11051 + ... + 11133.

It is an arithmetic number, because the mean of its divisors is an integer number (70560).

2⁹²⁰⁶³⁶ is an apocalyptic number.

It is an amenable number.

920636 is a deficient number, since it is larger than the sum of its proper divisors (772804).

920636 is a wasteful number, since it uses less digits than its factorization.

920636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193 (or 191 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 920636 is about 959.4977853023. The cubic root of 920636 is about 97.2812892889.

The spelling of 920636 in words is "nine hundred twenty thousand, six hundred thirty-six".