99858910 has 8 divisors (see below), whose sum is σ = 179746056. Its totient is φ = 39943560.

The previous prime is 99858859. The next prime is 99858911. The reversal of 99858910 is 1985899.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99858911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4992936 + ... + 4992955.

It is an arithmetic number, because the mean of its divisors is an integer number (22468257).

Almost surely, 2^99858910 is an apocalyptic number.

99858910 is a deficient number, since it is larger than the sum of its proper divisors (79887146).

99858910 is a wasteful number, since it uses less digits than its factorization.

99858910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9985898.

The product of its (nonzero) digits is 233280, while the sum is 49.

The square root of 99858910 is about 9992.9430099446. The cubic root of 99858910 is about 463.9404866943.

The spelling of 99858910 in words is "ninety-nine million, eight hundred fifty-eight thousand, nine hundred ten".