85343047 has 2 divisors, whose sum is σ = 85343048. Its totient is φ = 85343046.

The previous prime is 85343029. The next prime is 85343107. The reversal of 85343047 is 74034358.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85343047 - 2²³ = 76954439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85343647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42671523 + 42671524.

It is an arithmetic number, because the mean of its divisors is an integer number (42671524).

Almost surely, 2^85343047 is an apocalyptic number.

85343047 is a deficient number, since it is larger than the sum of its proper divisors (1).

85343047 is an equidigital number, since it uses as much as digits as its factorization.

85343047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 85343047 is about 9238.1300597036. The cubic root of 85343047 is about 440.2736710004.

The spelling of 85343047 in words is "eighty-five million, three hundred forty-three thousand, forty-seven".