99998860 has 24 divisors (see below), whose sum is σ = 226151856. Its totient is φ = 36922560.

The previous prime is 99998851. The next prime is 99998869. The reversal of 99998860 is 6889999.

It is an interprime number because it is at equal distance from previous prime (99998851) and next prime (99998869).

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 99998795 and 99998804.

It is not an unprimeable number, because it can be changed into a prime (99998869) 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, 192046 + ... + 192565.

It is an arithmetic number, because the mean of its divisors is an integer number (9422994).

Almost surely, 2^99998860 is an apocalyptic number.

It is an amenable number.

99998860 is an abundant number, since it is smaller than the sum of its proper divisors (126152996).

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

99998860 is a wasteful number, since it uses less digits than its factorization.

99998860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384633 (or 384631 counting only the distinct ones).

The product of its (nonzero) digits is 2519424, while the sum is 58.

The square root of 99998860 is about 9999.9429998375. The cubic root of 99998860 is about 464.1571195508.

The spelling of 99998860 in words is "ninety-nine million, nine hundred ninety-eight thousand, eight hundred sixty".