98665998 has 16 divisors (see below), whose sum is σ = 205911936. Its totient is φ = 31458680.

The previous prime is 98665979. The next prime is 98665999. The reversal of 98665998 is 89956689.

It is a super-2 number, since 2×98665998² = 19469958322672008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98665999) 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, 357348 + ... + 357623.

It is an arithmetic number, because the mean of its divisors is an integer number (12869496).

Almost surely, 2^98665998 is an apocalyptic number.

98665998 is an abundant number, since it is smaller than the sum of its proper divisors (107245938).

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

98665998 is a wasteful number, since it uses less digits than its factorization.

98665998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714999.

The product of its digits is 8398080, while the sum is 60.

The square root of 98665998 is about 9933.0759586344. The cubic root of 98665998 is about 462.0856740348.

The spelling of 98665998 in words is "ninety-eight million, six hundred sixty-five thousand, nine hundred ninety-eight".