920656 has 20 divisors (see below), whose sum is σ = 1946304. Its totient is φ = 418400.

The previous prime is 920653. The next prime is 920677. The reversal of 920656 is 656029.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (920651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2440 + ... + 2791.

2⁹²⁰⁶⁵⁶ is an apocalyptic number.

It is an amenable number.

920656 is an abundant number, since it is smaller than the sum of its proper divisors (1025648).

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

920656 is a wasteful number, since it uses less digits than its factorization.

920656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5250 (or 5244 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 920656 is about 959.5082073646. The cubic root of 920656 is about 97.2819937337.

The spelling of 920656 in words is "nine hundred twenty thousand, six hundred fifty-six".