823930 has 8 divisors (see below), whose sum is σ = 1483092. Its totient is φ = 329568.

The previous prime is 823913. The next prime is 823961. The reversal of 823930 is 39328.

It is a happy number.

823930 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 804609 + 19321 = 897^2 + 139^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 823895 and 823904.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41187 + ... + 41206.

2⁸²³⁹³⁰ is an apocalyptic number.

823930 is a deficient number, since it is larger than the sum of its proper divisors (659162).

823930 is a wasteful number, since it uses less digits than its factorization.

823930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82400.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 823930 is about 907.7058995071. The cubic root of 823930 is about 93.7483081176.

The spelling of 823930 in words is "eight hundred twenty-three thousand, nine hundred thirty".