83321500 has 24 divisors (see below), whose sum is σ = 181975248. Its totient is φ = 33328400.

The previous prime is 83321473. The next prime is 83321501. The reversal of 83321500 is 512338.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83321501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82822 + ... + 83821.

It is an arithmetic number, because the mean of its divisors is an integer number (7582302).

Almost surely, 2^83321500 is an apocalyptic number.

It is an amenable number.

83321500 is an abundant number, since it is smaller than the sum of its proper divisors (98653748).

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

83321500 is a wasteful number, since it uses less digits than its factorization.

83321500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166662 (or 166650 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 83321500 is about 9128.0611303825. The cubic root of 83321500 is about 436.7695566518.

Adding to 83321500 its reverse (512338), we get a palindrome (83833838).

The spelling of 83321500 in words is "eighty-three million, three hundred twenty-one thousand, five hundred".