823030 has 24 divisors (see below), whose sum is σ = 1607472. Its totient is φ = 303264.

The previous prime is 823013. The next prime is 823033. The reversal of 823030 is 30328.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 822995 and 823013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (823033) by changing a digit.

823030 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1447 + ... + 1933.

It is an arithmetic number, because the mean of its divisors is an integer number (66978).

2⁸²³⁰³⁰ is an apocalyptic number.

823030 is a deficient number, since it is larger than the sum of its proper divisors (784442).

823030 is a wasteful number, since it uses less digits than its factorization.

823030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520 (or 507 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 823030 is about 907.2100087631. The cubic root of 823030 is about 93.7141611160.

Adding to 823030 its reverse (30328), we get a palindrome (853358).

The spelling of 823030 in words is "eight hundred twenty-three thousand, thirty".