98998681 has 4 divisors (see below), whose sum is σ = 99021312. Its totient is φ = 98976052.

The previous prime is 98998673. The next prime is 98998687. The reversal of 98998681 is 18689989.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 98998681 - 2³ = 98998673 is a prime.

It is a super-2 number, since 2×98998681² = 19601477679479522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98998687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2425 + ... + 14278.

It is an arithmetic number, because the mean of its divisors is an integer number (24755328).

Almost surely, 2^98998681 is an apocalyptic number.

It is an amenable number.

98998681 is a deficient number, since it is larger than the sum of its proper divisors (22631).

98998681 is a wasteful number, since it uses less digits than its factorization.

98998681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22630.

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

The square root of 98998681 is about 9949.8080886015. The cubic root of 98998681 is about 462.6044464379.

The spelling of 98998681 in words is "ninety-eight million, nine hundred ninety-eight thousand, six hundred eighty-one".