83347220 has 96 divisors (see below), whose sum is σ = 200696832. Its totient is φ = 29040000.

The previous prime is 83347213. The next prime is 83347237. The reversal of 83347220 is 2274338.

83347220 = T₂₂₃₁ + T₂₂₃₂ + ... + T₂₂₆₃.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 825170 + ... + 825270.

It is an arithmetic number, because the mean of its divisors is an integer number (2090592).

Almost surely, 2^83347220 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 83347220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100348416).

83347220 is an abundant number, since it is smaller than the sum of its proper divisors (117349612).

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

83347220 is a wasteful number, since it uses less digits than its factorization.

83347220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174 (or 150 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 83347220 is about 9129.4698641268. The cubic root of 83347220 is about 436.8144932620.

The spelling of 83347220 in words is "eighty-three million, three hundred forty-seven thousand, two hundred twenty".