920688 has 20 divisors (see below), whose sum is σ = 2378568. Its totient is φ = 306880.

The previous prime is 920687. The next prime is 920701. The reversal of 920688 is 886029.

It is an Ulam number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (920687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9543 + ... + 9638.

2⁹²⁰⁶⁸⁸ is an apocalyptic number.

It is an amenable number.

920688 is an abundant number, since it is smaller than the sum of its proper divisors (1457880).

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

920688 is a wasteful number, since it uses less digits than its factorization.

920688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19192 (or 19186 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 920688 is about 959.5248824288. The cubic root of 920688 is about 97.2831208241.

The spelling of 920688 in words is "nine hundred twenty thousand, six hundred eighty-eight".