85728743 has 2 divisors, whose sum is σ = 85728744. Its totient is φ = 85728742.

The previous prime is 85728707. The next prime is 85728749. The reversal of 85728743 is 34782758.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85728743 - 2⁶ = 85728679 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85728694 and 85728703.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85728749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42864371 + 42864372.

It is an arithmetic number, because the mean of its divisors is an integer number (42864372).

Almost surely, 2^85728743 is an apocalyptic number.

85728743 is a deficient number, since it is larger than the sum of its proper divisors (1).

85728743 is an equidigital number, since it uses as much as digits as its factorization.

85728743 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 376320, while the sum is 44.

The square root of 85728743 is about 9258.9817474709. The cubic root of 85728743 is about 440.9359261637.

The spelling of 85728743 in words is "eighty-five million, seven hundred twenty-eight thousand, seven hundred forty-three".