85647743 has 2 divisors, whose sum is σ = 85647744. Its totient is φ = 85647742.

The previous prime is 85647719. The next prime is 85647767. The reversal of 85647743 is 34774658.

It is a balanced prime because it is at equal distance from previous prime (85647719) and next prime (85647767).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85647743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85647694 and 85647703.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85647773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42823871 + 42823872.

It is an arithmetic number, because the mean of its divisors is an integer number (42823872).

Almost surely, 2^85647743 is an apocalyptic number.

85647743 is a deficient number, since it is larger than the sum of its proper divisors (1).

85647743 is an equidigital number, since it uses as much as digits as its factorization.

85647743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 564480, while the sum is 44.

The square root of 85647743 is about 9254.6065826701. The cubic root of 85647743 is about 440.7970110101.

The spelling of 85647743 in words is "eighty-five million, six hundred forty-seven thousand, seven hundred forty-three".