99509858 has 8 divisors (see below), whose sum is σ = 170588352. Its totient is φ = 42647076.

The previous prime is 99509833. The next prime is 99509863. The reversal of 99509858 is 85890599.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3553910 + ... + 3553937.

It is an arithmetic number, because the mean of its divisors is an integer number (21323544).

Almost surely, 2^99509858 is an apocalyptic number.

99509858 is a deficient number, since it is larger than the sum of its proper divisors (71078494).

99509858 is a wasteful number, since it uses less digits than its factorization.

99509858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7107856.

The product of its (nonzero) digits is 1166400, while the sum is 53.

The square root of 99509858 is about 9975.4627962817. The cubic root of 99509858 is about 463.3992951078.

The spelling of 99509858 in words is "ninety-nine million, five hundred nine thousand, eight hundred fifty-eight".