979549 has 2 divisors, whose sum is σ = 979550. Its totient is φ = 979548.

The previous prime is 979543. The next prime is 979553. The reversal of 979549 is 945979.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 722500 + 257049 = 850^2 + 507^2 .

It is a cyclic number.

It is not a de Polignac number, because 979549 - 2³ = 979541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (979541) 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 as a sum of consecutive naturals, namely, 489774 + 489775.

It is an arithmetic number, because the mean of its divisors is an integer number (489775).

2⁹⁷⁹⁵⁴⁹ is an apocalyptic number.

It is an amenable number.

979549 is a deficient number, since it is larger than the sum of its proper divisors (1).

979549 is an equidigital number, since it uses as much as digits as its factorization.

979549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 102060, while the sum is 43.

The square root of 979549 is about 989.7216780489. The cubic root of 979549 is about 99.3135993209.

The spelling of 979549 in words is "nine hundred seventy-nine thousand, five hundred forty-nine".