85597943 has 2 divisors, whose sum is σ = 85597944. Its totient is φ = 85597942.

The previous prime is 85597933. The next prime is 85597997. The reversal of 85597943 is 34979558.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85597943 - 2¹² = 85593847 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85597891 and 85597900.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85597933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42798971 + 42798972.

It is an arithmetic number, because the mean of its divisors is an integer number (42798972).

Almost surely, 2^85597943 is an apocalyptic number.

85597943 is a deficient number, since it is larger than the sum of its proper divisors (1).

85597943 is an equidigital number, since it uses as much as digits as its factorization.

85597943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1360800, while the sum is 50.

The square root of 85597943 is about 9251.9156394770. The cubic root of 85597943 is about 440.7115604333.

The spelling of 85597943 in words is "eighty-five million, five hundred ninety-seven thousand, nine hundred forty-three".