823628 has 24 divisors (see below), whose sum is σ = 1589952. Its totient is φ = 370944.

The previous prime is 823621. The next prime is 823637. The reversal of 823628 is 826328.

It is a self number, because there is not a number n which added to its sum of digits gives 823628.

It is not an unprimeable number, because it can be changed into a prime (823621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2276 + ... + 2612.

It is an arithmetic number, because the mean of its divisors is an integer number (66248).

2⁸²³⁶²⁸ is an apocalyptic number.

It is an amenable number.

823628 is a deficient number, since it is larger than the sum of its proper divisors (766324).

823628 is a wasteful number, since it uses less digits than its factorization.

823628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401 (or 399 counting only the distinct ones).

The product of its digits is 4608, while the sum is 29.

The square root of 823628 is about 907.5395308195. The cubic root of 823628 is about 93.7368526748.

The spelling of 823628 in words is "eight hundred twenty-three thousand, six hundred twenty-eight".