823970 has 32 divisors (see below), whose sum is σ = 1728000. Its totient is φ = 277056.

The previous prime is 823969. The next prime is 823981. The reversal of 823970 is 79328.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5456 + ... + 5604.

It is an arithmetic number, because the mean of its divisors is an integer number (54000).

2⁸²³⁹⁷⁰ is an apocalyptic number.

823970 is an abundant number, since it is smaller than the sum of its proper divisors (904030).

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

823970 is a wasteful number, since it uses less digits than its factorization.

823970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 823970 is about 907.7279328081. The cubic root of 823970 is about 93.7498251849.

The spelling of 823970 in words is "eight hundred twenty-three thousand, nine hundred seventy".