823975 has 12 divisors (see below), whose sum is σ = 1066896. Its totient is φ = 630080.

The previous prime is 823969. The next prime is 823981. The reversal of 823975 is 579328.

823975 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (823969) and next prime (823981).

It is not a de Polignac number, because 823975 - 2³ = 823967 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 823975.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 142 + ... + 1291.

It is an arithmetic number, because the mean of its divisors is an integer number (88908).

2⁸²³⁹⁷⁵ is an apocalyptic number.

823975 is a deficient number, since it is larger than the sum of its proper divisors (242921).

823975 is a wasteful number, since it uses less digits than its factorization.

823975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1466 (or 1461 counting only the distinct ones).

The product of its digits is 15120, while the sum is 34.

The square root of 823975 is about 907.7306869331. The cubic root of 823975 is about 93.7500148148.

The spelling of 823975 in words is "eight hundred twenty-three thousand, nine hundred seventy-five".