40579793 has 2 divisors, whose sum is σ = 40579794. Its totient is φ = 40579792.

The previous prime is 40579757. The next prime is 40579813. The reversal of 40579793 is 39797504.

It is a happy number.

40579793 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29343889 + 11235904 = 5417^2 + 3352^2 .

It is a cyclic number.

It is not a de Polignac number, because 40579793 - 2¹⁸ = 40317649 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (40579723) 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, 20289896 + 20289897.

It is an arithmetic number, because the mean of its divisors is an integer number (20289897).

Almost surely, 2^40579793 is an apocalyptic number.

It is an amenable number.

40579793 is a deficient number, since it is larger than the sum of its proper divisors (1).

40579793 is an equidigital number, since it uses as much as digits as its factorization.

40579793 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 238140, while the sum is 44.

The square root of 40579793 is about 6370.2270760154. The cubic root of 40579793 is about 343.6396561316.

The spelling of 40579793 in words is "forty million, five hundred seventy-nine thousand, seven hundred ninety-three".