823038612 has 72 divisors (see below), whose sum is σ = 2235115008. Its totient is φ = 234727680.

The previous prime is 823038611. The next prime is 823038631. The reversal of 823038612 is 216830328.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (823038611) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8013 + ... + 41355.

It is an arithmetic number, because the mean of its divisors is an integer number (31043264).

Almost surely, 2^823038612 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 823038612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1117557504).

823038612 is an abundant number, since it is smaller than the sum of its proper divisors (1412076396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

823038612 is a wasteful number, since it uses less digits than its factorization.

823038612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33389 (or 33376 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 823038612 is about 28688.6495325242. The cubic root of 823038612 is about 937.1448798282.

The spelling of 823038612 in words is "eight hundred twenty-three million, thirty-eight thousand, six hundred twelve".