99881058 has 8 divisors (see below), whose sum is σ = 199762128. Its totient is φ = 33293684.

The previous prime is 99881053. The next prime is 99881059. The reversal of 99881058 is 85018899.

It is a sphenic number, since it is the product of 3 distinct primes.

99881058 is an admirable number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 99880998 and 99881016.

It is not an unprimeable number, because it can be changed into a prime (99881053) 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 3 ways as a sum of consecutive naturals, for example, 8323416 + ... + 8323427.

It is an arithmetic number, because the mean of its divisors is an integer number (24970266).

Almost surely, 2^99881058 is an apocalyptic number.

99881058 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

99881058 is a wasteful number, since it uses less digits than its factorization.

99881058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16646848.

The product of its (nonzero) digits is 207360, while the sum is 48.

The square root of 99881058 is about 9994.0511305476. The cubic root of 99881058 is about 463.9747837317.

The spelling of 99881058 in words is "ninety-nine million, eight hundred eighty-one thousand, fifty-eight".