823528 has 16 divisors (see below), whose sum is σ = 1553760. Its totient is φ = 409200.

The previous prime is 823519. The next prime is 823541. The reversal of 823528 is 825328.

It is a junction number, because it is equal to n+sod(n) for n = 823496 and 823505.

It is an unprimeable number.

823528 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 3 ways as a sum of consecutive naturals, for example, 2323 + ... + 2653.

It is an arithmetic number, because the mean of its divisors is an integer number (97110).

2⁸²³⁵²⁸ is an apocalyptic number.

It is an amenable number.

823528 is a deficient number, since it is larger than the sum of its proper divisors (730232).

823528 is a wasteful number, since it uses less digits than its factorization.

823528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648 (or 644 counting only the distinct ones).

The product of its digits is 3840, while the sum is 28.

The square root of 823528 is about 907.4844351282. The cubic root of 823528 is about 93.7330588648.

The spelling of 823528 in words is "eight hundred twenty-three thousand, five hundred twenty-eight".