979811 has 16 divisors (see below), whose sum is σ = 1209600. Its totient is φ = 775008.

The previous prime is 979807. The next prime is 979819. The reversal of 979811 is 118979.

It is a cyclic number.

It is not a de Polignac number, because 979811 - 2² = 979807 is a prime.

It is a zygodrome in base 6.

It is not an unprimeable number, because it can be changed into a prime (979819) 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 15 ways as a sum of consecutive naturals, for example, 6980 + ... + 7118.

It is an arithmetic number, because the mean of its divisors is an integer number (75600).

2⁹⁷⁹⁸¹¹ is an apocalyptic number.

979811 is a deficient number, since it is larger than the sum of its proper divisors (229789).

979811 is a wasteful number, since it uses less digits than its factorization.

979811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218.

The product of its digits is 4536, while the sum is 35.

The square root of 979811 is about 989.8540296428. The cubic root of 979811 is about 99.3224530020.

The spelling of 979811 in words is "nine hundred seventy-nine thousand, eight hundred eleven".