99905104 has 40 divisors (see below), whose sum is σ = 209425832. Its totient is φ = 45895680.

The previous prime is 99905101. The next prime is 99905111. The reversal of 99905104 is 40150999.

It can be written as a sum of positive squares in 4 ways, for example, as 18905104 + 81000000 = 4348^2 + 9000^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99905101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49132 + ... + 51124.

Almost surely, 2^99905104 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 99905104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104712916).

99905104 is an abundant number, since it is smaller than the sum of its proper divisors (109520728).

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

99905104 is a wasteful number, since it uses less digits than its factorization.

99905104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2255 (or 2249 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 37.

The square root of 99905104 is about 9995.2540738092. The cubic root of 99905104 is about 464.0120141558.

The spelling of 99905104 in words is "ninety-nine million, nine hundred five thousand, one hundred four".