99998370 has 48 divisors (see below), whose sum is σ = 261775800. Its totient is φ = 26483712.

The previous prime is 99998363. The next prime is 99998377. The reversal of 99998370 is 7389999.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (99998363) and next prime (99998377).

It can be written as a sum of positive squares in 4 ways, for example, as 50168889 + 49829481 = 7083^2 + 7059^2 .

It is not an unprimeable number, because it can be changed into a prime (99998377) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9682 + ... + 17138.

Almost surely, 2^99998370 is an apocalyptic number.

99998370 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 99998370, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130887900).

99998370 is an abundant number, since it is smaller than the sum of its proper divisors (161777430).

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

99998370 is a wasteful number, since it uses less digits than its factorization.

99998370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7619 (or 7616 counting only the distinct ones).

The product of its (nonzero) digits is 1102248, while the sum is 54.

The square root of 99998370 is about 9999.9184996679. The cubic root of 99998370 is about 464.1563614176.

The spelling of 99998370 in words is "ninety-nine million, nine hundred ninety-eight thousand, three hundred seventy".