82990500 has 96 divisors (see below), whose sum is σ = 245900928. Its totient is φ = 21744000.

The previous prime is 82990469. The next prime is 82990507. The reversal of 82990500 is 509928.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (82990507) 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 31 ways as a sum of consecutive naturals, for example, 91047 + ... + 91953.

It is an arithmetic number, because the mean of its divisors is an integer number (2561468).

Almost surely, 2^82990500 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 82990500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122950464).

82990500 is an abundant number, since it is smaller than the sum of its proper divisors (162910428).

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

82990500 is a wasteful number, since it uses less digits than its factorization.

82990500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 990 (or 978 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 82990500 is about 9109.9121839895. The cubic root of 82990500 is about 436.1904240722.

The spelling of 82990500 in words is "eighty-two million, nine hundred ninety thousand, five hundred".