98771111 has 4 divisors (see below), whose sum is σ = 100872672. Its totient is φ = 96669552.

The previous prime is 98771107. The next prime is 98771137. The reversal of 98771111 is 11117789.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 98771111 - 2² = 98771107 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98771191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1050710 + ... + 1050803.

It is an arithmetic number, because the mean of its divisors is an integer number (25218168).

Almost surely, 2^98771111 is an apocalyptic number.

98771111 is a deficient number, since it is larger than the sum of its proper divisors (2101561).

98771111 is a wasteful number, since it uses less digits than its factorization.

98771111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2101560.

The product of its digits is 3528, while the sum is 35.

The square root of 98771111 is about 9938.3656100991. The cubic root of 98771111 is about 462.2497088402.

The spelling of 98771111 in words is "ninety-eight million, seven hundred seventy-one thousand, one hundred eleven".