980911 has 2 divisors, whose sum is σ = 980912. Its totient is φ = 980910.

The previous prime is 980909. The next prime is 980921. The reversal of 980911 is 119089.

It is a weak prime.

It is an emirp because it is prime and its reverse (119089) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 980911 - 2¹ = 980909 is a prime.

Together with 980909, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 980911.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (980921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 490455 + 490456.

It is an arithmetic number, because the mean of its divisors is an integer number (490456).

2⁹⁸⁰⁹¹¹ is an apocalyptic number.

980911 is a deficient number, since it is larger than the sum of its proper divisors (1).

980911 is an equidigital number, since it uses as much as digits as its factorization.

980911 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 28.

The square root of 980911 is about 990.4095112629. The cubic root of 980911 is about 99.3596077316.

It can be divided in two parts, 980 and 911, that added together give a triangular number (1891 = T₆₁).

The spelling of 980911 in words is "nine hundred eighty thousand, nine hundred eleven".