83222790 has 32 divisors (see below), whose sum is σ = 228268800. Its totient is φ = 19022304.

The previous prime is 83222767. The next prime is 83222791. The reversal of 83222790 is 9722238.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83222791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 197940 + ... + 198359.

It is an arithmetic number, because the mean of its divisors is an integer number (7133400).

Almost surely, 2^83222790 is an apocalyptic number.

83222790 is an abundant number, since it is smaller than the sum of its proper divisors (145046010).

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

83222790 is a wasteful number, since it uses less digits than its factorization.

83222790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396316.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 83222790 is about 9122.6525747723. The cubic root of 83222790 is about 436.5970099121.

The spelling of 83222790 in words is "eighty-three million, two hundred twenty-two thousand, seven hundred ninety".