823280712 has 16 divisors (see below), whose sum is σ = 2058201840. Its totient is φ = 274426896.

The previous prime is 823280707. The next prime is 823280719. The reversal of 823280712 is 217082328.

It is a super-2 number, since 2×823280712² = 1355582261502453888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (823280719) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17151658 + ... + 17151705.

It is an arithmetic number, because the mean of its divisors is an integer number (128637615).

Almost surely, 2^823280712 is an apocalyptic number.

It is an amenable number.

823280712 is an abundant number, since it is smaller than the sum of its proper divisors (1234921128).

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

823280712 is a wasteful number, since it uses less digits than its factorization.

823280712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34303372 (or 34303368 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 823280712 is about 28692.8686610454. The cubic root of 823280712 is about 937.2367590870.

The spelling of 823280712 in words is "eight hundred twenty-three million, two hundred eighty thousand, seven hundred twelve".