98981871 has 8 divisors (see below), whose sum is σ = 139739184. Its totient is φ = 62106240.

The previous prime is 98981863. The next prime is 98981879. The reversal of 98981871 is 17818989.

It is an interprime number because it is at equal distance from previous prime (98981863) and next prime (98981879).

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

It is not a de Polignac number, because 98981871 - 2³ = 98981863 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51), and also a Moran number because the ratio is a prime number: 1940821 = 98981871 / (9 + 8 + 9 + 8 + 1 + 8 + 7 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98981879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 970360 + ... + 970461.

It is an arithmetic number, because the mean of its divisors is an integer number (17467398).

Almost surely, 2^98981871 is an apocalyptic number.

98981871 is a deficient number, since it is larger than the sum of its proper divisors (40757313).

98981871 is a wasteful number, since it uses less digits than its factorization.

98981871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1940841.

The product of its digits is 290304, while the sum is 51.

The square root of 98981871 is about 9948.9633128281. The cubic root of 98981871 is about 462.5782615067.

The spelling of 98981871 in words is "ninety-eight million, nine hundred eighty-one thousand, eight hundred seventy-one".