980111 has 4 divisors (see below), whose sum is σ = 1069224. Its totient is φ = 891000.

The previous prime is 980107. The next prime is 980117. The reversal of 980111 is 111089.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111089 = 11 ⋅10099.

It is not a de Polignac number, because 980111 - 2² = 980107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 980111.

It is not an unprimeable number, because it can be changed into a prime (980117) 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, 44540 + ... + 44561.

It is an arithmetic number, because the mean of its divisors is an integer number (267306).

2⁹⁸⁰¹¹¹ is an apocalyptic number.

980111 is a deficient number, since it is larger than the sum of its proper divisors (89113).

980111 is a wasteful number, since it uses less digits than its factorization.

980111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89112.

The product of its (nonzero) digits is 72, while the sum is 20.

The square root of 980111 is about 990.0055555400. The cubic root of 980111 is about 99.3325888668.

The spelling of 980111 in words is "nine hundred eighty thousand, one hundred eleven".