979231 has 4 divisors (see below), whose sum is σ = 1068264. Its totient is φ = 890200.

The previous prime is 979229. The next prime is 979261. The reversal of 979231 is 132979.

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 979231 - 2¹ = 979229 is a prime.

It is a super-2 number, since 2×979231² = 1917786702722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 979193 and 979202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (979201) 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, 44500 + ... + 44521.

It is an arithmetic number, because the mean of its divisors is an integer number (267066).

2⁹⁷⁹²³¹ is an apocalyptic number.

979231 is a deficient number, since it is larger than the sum of its proper divisors (89033).

979231 is a wasteful number, since it uses less digits than its factorization.

979231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89032.

The product of its digits is 3402, while the sum is 31.

The square root of 979231 is about 989.5610137834. The cubic root of 979231 is about 99.3028511287.

The spelling of 979231 in words is "nine hundred seventy-nine thousand, two hundred thirty-one".