99509004 has 108 divisors (see below), whose sum is σ = 308107800. Its totient is φ = 26925696.

The previous prime is 99508999. The next prime is 99509057. The reversal of 99509004 is 40090599.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 99509004.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 32032 + ... + 35000.

It is an arithmetic number, because the mean of its divisors is an integer number (2852850).

Almost surely, 2^99509004 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99509004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154053900).

99509004 is an abundant number, since it is smaller than the sum of its proper divisors (208598796).

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

99509004 is a wasteful number, since it uses less digits than its factorization.

99509004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3012 (or 3000 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The square root of 99509004 is about 9975.4199911583. The cubic root of 99509004 is about 463.3979694632.

The spelling of 99509004 in words is "ninety-nine million, five hundred nine thousand, four".