85791413 has 2 divisors, whose sum is σ = 85791414. Its totient is φ = 85791412.

The previous prime is 85791337. The next prime is 85791427. The reversal of 85791413 is 31419758.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76440049 + 9351364 = 8743^2 + 3058^2 .

It is a cyclic number.

It is not a de Polignac number, because 85791413 - 2⁸ = 85791157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85791463) 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, 42895706 + 42895707.

It is an arithmetic number, because the mean of its divisors is an integer number (42895707).

Almost surely, 2^85791413 is an apocalyptic number.

It is an amenable number.

85791413 is a deficient number, since it is larger than the sum of its proper divisors (1).

85791413 is an equidigital number, since it uses as much as digits as its factorization.

85791413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 38.

The square root of 85791413 is about 9262.3654106281. The cubic root of 85791413 is about 441.0433453041.

The spelling of 85791413 in words is "eighty-five million, seven hundred ninety-one thousand, four hundred thirteen".