79923593 has 2 divisors, whose sum is σ = 79923594. Its totient is φ = 79923592.

The previous prime is 79923587. The next prime is 79923601. The reversal of 79923593 is 39532997.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79423744 + 499849 = 8912^2 + 707^2 .

It is a cyclic number.

It is not a de Polignac number, because 79923593 - 2¹⁶ = 79858057 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (79923533) 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 as a sum of consecutive naturals, namely, 39961796 + 39961797.

It is an arithmetic number, because the mean of its divisors is an integer number (39961797).

Almost surely, 2^79923593 is an apocalyptic number.

It is an amenable number.

79923593 is a deficient number, since it is larger than the sum of its proper divisors (1).

79923593 is an equidigital number, since it uses as much as digits as its factorization.

79923593 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 459270, while the sum is 47.

The square root of 79923593 is about 8939.9996085011. Note that the first 3 decimals coincide. The cubic root of 79923593 is about 430.7497160680.

The spelling of 79923593 in words is "seventy-nine million, nine hundred twenty-three thousand, five hundred ninety-three".