83037220 has 144 divisors (see below), whose sum is σ = 221211648. Its totient is φ = 25608960.

The previous prime is 83037217. The next prime is 83037223. The reversal of 83037220 is 2273038.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (83037217) and next prime (83037223).

It is not an unprimeable number, because it can be changed into a prime (83037223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1566714 + ... + 1566766.

It is an arithmetic number, because the mean of its divisors is an integer number (1536192).

Almost surely, 2^83037220 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 83037220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110605824).

83037220 is an abundant number, since it is smaller than the sum of its proper divisors (138174428).

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

83037220 is a wasteful number, since it uses less digits than its factorization.

83037220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 83037220 is about 9112.4760630687. The cubic root of 83037220 is about 436.2722607229.

The spelling of 83037220 in words is "eighty-three million, thirty-seven thousand, two hundred twenty".