99998910 has 48 divisors (see below), whose sum is σ = 283636080. Its totient is φ = 24241920.

The previous prime is 99998909. The next prime is 99998929. The reversal of 99998910 is 1989999.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49515 + ... + 51494.

It is an arithmetic number, because the mean of its divisors is an integer number (5909085).

Almost surely, 2^99998910 is an apocalyptic number.

99998910 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

99998910 is an abundant number, since it is smaller than the sum of its proper divisors (183637170).

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

99998910 is a wasteful number, since it uses less digits than its factorization.

99998910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101033 (or 101030 counting only the distinct ones).

The product of its (nonzero) digits is 472392, while the sum is 54.

The square root of 99998910 is about 9999.9454998515. The cubic root of 99998910 is about 464.1571969112.

It can be divided in two parts, 999989 and 10, that added together give a palindrome (999999).

The spelling of 99998910 in words is "ninety-nine million, nine hundred ninety-eight thousand, nine hundred ten".