40785793 has 2 divisors, whose sum is σ = 40785794. Its totient is φ = 40785792.

The previous prime is 40785791. The next prime is 40785809. The reversal of 40785793 is 39758704.

It is a happy number.

40785793 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34374769 + 6411024 = 5863^2 + 2532^2 .

It is a cyclic number.

It is not a de Polignac number, because 40785793 - 2¹ = 40785791 is a prime.

Together with 40785791, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (40785791) 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, 20392896 + 20392897.

It is an arithmetic number, because the mean of its divisors is an integer number (20392897).

Almost surely, 2^40785793 is an apocalyptic number.

It is an amenable number.

40785793 is a deficient number, since it is larger than the sum of its proper divisors (1).

40785793 is an equidigital number, since it uses as much as digits as its factorization.

40785793 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 211680, while the sum is 43.

The square root of 40785793 is about 6386.3755761778. The cubic root of 40785793 is about 344.2201611438.

The spelling of 40785793 in words is "forty million, seven hundred eighty-five thousand, seven hundred ninety-three".