98615988 has 48 divisors (see below), whose sum is σ = 261918720. Its totient is φ = 32068800.

The previous prime is 98615983. The next prime is 98615999. The reversal of 98615988 is 88951689.

It is a super-2 number, since 2×98615988² = 19450226178432288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98615981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6708 + ... + 15563.

It is an arithmetic number, because the mean of its divisors is an integer number (5456640).

Almost surely, 2^98615988 is an apocalyptic number.

It is an amenable number.

98615988 is an abundant number, since it is smaller than the sum of its proper divisors (163302732).

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

98615988 is a wasteful number, since it uses less digits than its factorization.

98615988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22325 (or 22317 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 54.

The square root of 98615988 is about 9930.5582924627. The cubic root of 98615988 is about 462.0075896881.

The spelling of 98615988 in words is "ninety-eight million, six hundred fifteen thousand, nine hundred eighty-eight".