920997 has 32 divisors (see below), whose sum is σ = 1704960. Its totient is φ = 477360.

The previous prime is 920971. The next prime is 920999. The reversal of 920997 is 799029.

920997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 920997 - 2⁷ = 920869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (920999) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1858 + ... + 2300.

It is an arithmetic number, because the mean of its divisors is an integer number (53280).

2⁹²⁰⁹⁹⁷ is an apocalyptic number.

It is an amenable number.

920997 is a deficient number, since it is larger than the sum of its proper divisors (783963).

920997 is a wasteful number, since it uses less digits than its factorization.

920997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470 (or 464 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 36.

The square root of 920997 is about 959.6858861107. The cubic root of 920997 is about 97.2940029478.

The spelling of 920997 in words is "nine hundred twenty thousand, nine hundred ninety-seven".