99019855 has 8 divisors (see below), whose sum is σ = 129626064. Its totient is φ = 72014400.

The previous prime is 99019819. The next prime is 99019861. The reversal of 99019855 is 55891099.

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

It is not a de Polignac number, because 99019855 - 2⁷ = 99019727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 900126 + ... + 900235.

It is an arithmetic number, because the mean of its divisors is an integer number (16203258).

Almost surely, 2^99019855 is an apocalyptic number.

99019855 is a deficient number, since it is larger than the sum of its proper divisors (30606209).

99019855 is a wasteful number, since it uses less digits than its factorization.

99019855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1800377.

The product of its (nonzero) digits is 145800, while the sum is 46.

The square root of 99019855 is about 9950.8720723362. The cubic root of 99019855 is about 462.6374249523.

The spelling of 99019855 in words is "ninety-nine million, nineteen thousand, eight hundred fifty-five".