98985915 has 128 divisors (see below), whose sum is σ = 218880000. Its totient is φ = 41430528.

The previous prime is 98985911. The next prime is 98985919. The reversal of 98985915 is 51958989.

It is an interprime number because it is at equal distance from previous prime (98985911) and next prime (98985919).

It is not a de Polignac number, because 98985915 - 2² = 98985911 is a prime.

It is a super-2 number, since 2×98985915² = 19596422736774450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (98985911) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 664261 + ... + 664409.

It is an arithmetic number, because the mean of its divisors is an integer number (1710000).

Almost surely, 2^98985915 is an apocalyptic number.

98985915 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

98985915 is an abundant number, since it is smaller than the sum of its proper divisors (119894085).

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

98985915 is a wasteful number, since it uses less digits than its factorization.

98985915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226 (or 220 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 54.

The square root of 98985915 is about 9949.1665480079. The cubic root of 98985915 is about 462.5845611149.

The spelling of 98985915 in words is "ninety-eight million, nine hundred eighty-five thousand, nine hundred fifteen".