91820082 has 16 divisors (see below), whose sum is σ = 183921120. Its totient is φ = 30559872.

The previous prime is 91820081. The next prime is 91820087. The reversal of 91820082 is 28002819.

It is not an unprimeable number, because it can be changed into a prime (91820081) 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 7 ways as a sum of consecutive naturals, for example, 7332 + ... + 15407.

It is an arithmetic number, because the mean of its divisors is an integer number (11495070).

Almost surely, 2^91820082 is an apocalyptic number.

91820082 is an abundant number, since it is smaller than the sum of its proper divisors (92101038).

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

91820082 is a wasteful number, since it uses less digits than its factorization.

91820082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23417.

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 91820082 is about 9582.2795826463. The cubic root of 91820082 is about 451.1412710109.

The spelling of 91820082 in words is "ninety-one million, eight hundred twenty thousand, eighty-two".