823328990 has 16 divisors (see below), whose sum is σ = 1616718960. Its totient is φ = 299392320.

The previous prime is 823328981. The next prime is 823329007. The reversal of 823328990 is 99823328.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3742295 + ... + 3742514.

It is an arithmetic number, because the mean of its divisors is an integer number (101044935).

Almost surely, 2^823328990 is an apocalyptic number.

823328990 is a deficient number, since it is larger than the sum of its proper divisors (793389970).

823328990 is a wasteful number, since it uses less digits than its factorization.

823328990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7484827.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 823328990 is about 28693.7099378941. The cubic root of 823328990 is about 937.2550788942.

The spelling of 823328990 in words is "eight hundred twenty-three million, three hundred twenty-eight thousand, nine hundred ninety".