979213 has 4 divisors (see below), whose sum is σ = 982620. Its totient is φ = 975808.

The previous prime is 979211. The next prime is 979219. The reversal of 979213 is 312979.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 465124 + 514089 = 682^2 + 717^2 .

It is a cyclic number.

It is not a de Polignac number, because 979213 - 2¹ = 979211 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (979211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1228 + ... + 1861.

It is an arithmetic number, because the mean of its divisors is an integer number (245655).

2⁹⁷⁹²¹³ is an apocalyptic number.

It is an amenable number.

979213 is a deficient number, since it is larger than the sum of its proper divisors (3407).

979213 is a wasteful number, since it uses less digits than its factorization.

979213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3406.

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

The square root of 979213 is about 989.5519187996. The cubic root of 979213 is about 99.3022426709.

The spelling of 979213 in words is "nine hundred seventy-nine thousand, two hundred thirteen".