85757443 has 2 divisors, whose sum is σ = 85757444. Its totient is φ = 85757442.

The previous prime is 85757429. The next prime is 85757461. The reversal of 85757443 is 34475758.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85757443 - 2⁵ = 85757411 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85757443.

It is not a weakly prime, because it can be changed into another prime (85757473) 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, 42878721 + 42878722.

It is an arithmetic number, because the mean of its divisors is an integer number (42878722).

Almost surely, 2^85757443 is an apocalyptic number.

85757443 is a deficient number, since it is larger than the sum of its proper divisors (1).

85757443 is an equidigital number, since it uses as much as digits as its factorization.

85757443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 470400, while the sum is 43.

The square root of 85757443 is about 9260.5314642303. The cubic root of 85757443 is about 440.9851257232.

The spelling of 85757443 in words is "eighty-five million, seven hundred fifty-seven thousand, four hundred forty-three".