98551111 has 8 divisors (see below), whose sum is σ = 99559424. Its totient is φ = 97546680.

The previous prime is 98551039. The next prime is 98551147. The reversal of 98551111 is 11115589.

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

It is a cyclic number.

It is not a de Polignac number, because 98551111 - 2¹¹ = 98549063 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 (98554111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87196 + ... + 88318.

It is an arithmetic number, because the mean of its divisors is an integer number (12444928).

Almost surely, 2^98551111 is an apocalyptic number.

98551111 is a deficient number, since it is larger than the sum of its proper divisors (1008313).

98551111 is a wasteful number, since it uses less digits than its factorization.

98551111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1941.

The product of its digits is 1800, while the sum is 31.

The square root of 98551111 is about 9927.2912216777. The cubic root of 98551111 is about 461.9062530374.

The spelling of 98551111 in words is "ninety-eight million, five hundred fifty-one thousand, one hundred eleven".