979727543 has 2 divisors, whose sum is σ = 979727544. Its totient is φ = 979727542.

The previous prime is 979727501. The next prime is 979727557. The reversal of 979727543 is 345727979.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 979727543 - 2¹⁰ = 979726519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (979747543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 489863771 + 489863772.

It is an arithmetic number, because the mean of its divisors is an integer number (489863772).

Almost surely, 2^979727543 is an apocalyptic number.

979727543 is a deficient number, since it is larger than the sum of its proper divisors (1).

979727543 is an equidigital number, since it uses as much as digits as its factorization.

979727543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3333960, while the sum is 53.

The square root of 979727543 is about 31300.5997226890. The cubic root of 979727543 is about 993.1963293799.

The spelling of 979727543 in words is "nine hundred seventy-nine million, seven hundred twenty-seven thousand, five hundred forty-three".