40706579 has 2 divisors, whose sum is σ = 40706580. Its totient is φ = 40706578.

The previous prime is 40706557. The next prime is 40706593. The reversal of 40706579 is 97560704.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40706579 - 2¹⁶ = 40641043 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40706779) 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, 20353289 + 20353290.

It is an arithmetic number, because the mean of its divisors is an integer number (20353290).

Almost surely, 2^40706579 is an apocalyptic number.

40706579 is a deficient number, since it is larger than the sum of its proper divisors (1).

40706579 is an equidigital number, since it uses as much as digits as its factorization.

40706579 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 40706579 is about 6380.1707657397. The cubic root of 40706579 is about 343.9971690546.

The spelling of 40706579 in words is "forty million, seven hundred six thousand, five hundred seventy-nine".