99019902 has 8 divisors (see below), whose sum is σ = 198039816. Its totient is φ = 33006632.

The previous prime is 99019889. The next prime is 99019909. The reversal of 99019902 is 20991099.

It is a happy number.

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

99019902 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99019909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8251653 + ... + 8251664.

It is an arithmetic number, because the mean of its divisors is an integer number (24754977).

Almost surely, 2^99019902 is an apocalyptic number.

99019902 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.

99019902 is a wasteful number, since it uses less digits than its factorization.

99019902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16503322.

The product of its (nonzero) digits is 13122, while the sum is 39.

The square root of 99019902 is about 9950.8744339380. The cubic root of 99019902 is about 462.6374981496.

The spelling of 99019902 in words is "ninety-nine million, nineteen thousand, nine hundred two".