99720082 has 32 divisors (see below), whose sum is σ = 187951104. Its totient is φ = 38547600.

The previous prime is 99720073. The next prime is 99720109. The reversal of 99720082 is 28002799.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17703 + ... + 22645.

It is an arithmetic number, because the mean of its divisors is an integer number (5873472).

Almost surely, 2^99720082 is an apocalyptic number.

99720082 is a deficient number, since it is larger than the sum of its proper divisors (88231022).

99720082 is a wasteful number, since it uses less digits than its factorization.

99720082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5094.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 99720082 is about 9985.9942920072. The cubic root of 99720082 is about 463.7253905468.

The spelling of 99720082 in words is "ninety-nine million, seven hundred twenty thousand, eighty-two".