40716839 has 2 divisors, whose sum is σ = 40716840. Its totient is φ = 40716838.

The previous prime is 40716821. The next prime is 40716847. The reversal of 40716839 is 93861704.

40716839 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40716839 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40716859) 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, 20358419 + 20358420.

It is an arithmetic number, because the mean of its divisors is an integer number (20358420).

Almost surely, 2^40716839 is an apocalyptic number.

40716839 is a deficient number, since it is larger than the sum of its proper divisors (1).

40716839 is an equidigital number, since it uses as much as digits as its factorization.

40716839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 40716839 is about 6380.9747687951. The cubic root of 40716839 is about 344.0260678596.

The spelling of 40716839 in words is "forty million, seven hundred sixteen thousand, eight hundred thirty-nine".