979120393 has 2 divisors, whose sum is σ = 979120394. Its totient is φ = 979120392.

The previous prime is 979120339. The next prime is 979120409. The reversal of 979120393 is 393021979.

Together with previous prime (979120339) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 907937424 + 71182969 = 30132^2 + 8437^2 .

It is a cyclic number.

It is not a de Polignac number, because 979120393 - 2¹³ = 979112201 is a prime.

It is not a weakly prime, because it can be changed into another prime (979120193) 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, 489560196 + 489560197.

It is an arithmetic number, because the mean of its divisors is an integer number (489560197).

Almost surely, 2^979120393 is an apocalyptic number.

It is an amenable number.

979120393 is a deficient number, since it is larger than the sum of its proper divisors (1).

979120393 is an equidigital number, since it uses as much as digits as its factorization.

979120393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 91854, while the sum is 43.

The square root of 979120393 is about 31290.8995236634. The cubic root of 979120393 is about 992.9911213896.

The spelling of 979120393 in words is "nine hundred seventy-nine million, one hundred twenty thousand, three hundred ninety-three".