98886991 has 8 divisors (see below), whose sum is σ = 113418144. Its totient is φ = 84456960.

The previous prime is 98886929. The next prime is 98887007. The reversal of 98886991 is 19968889.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 98886991 - 2⁷ = 98886863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98886911) 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, 23170 + ... + 27103.

It is an arithmetic number, because the mean of its divisors is an integer number (14177268).

Almost surely, 2^98886991 is an apocalyptic number.

98886991 is a deficient number, since it is larger than the sum of its proper divisors (14531153).

98886991 is a wasteful number, since it uses less digits than its factorization.

98886991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50561.

The product of its digits is 2239488, while the sum is 58.

The square root of 98886991 is about 9944.1938335895. The cubic root of 98886991 is about 462.4304113465.

The spelling of 98886991 in words is "ninety-eight million, eight hundred eighty-six thousand, nine hundred ninety-one".