85043347 has 4 divisors (see below), whose sum is σ = 85061880. Its totient is φ = 85024816.

The previous prime is 85043281. The next prime is 85043359. The reversal of 85043347 is 74334058.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85043347 - 2¹⁹ = 84519059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85043047) 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 in 3 ways as a sum of consecutive naturals, for example, 3279 + ... + 13447.

It is an arithmetic number, because the mean of its divisors is an integer number (21265470).

Almost surely, 2^85043347 is an apocalyptic number.

85043347 is a deficient number, since it is larger than the sum of its proper divisors (18533).

85043347 is a wasteful number, since it uses less digits than its factorization.

85043347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18532.

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

The square root of 85043347 is about 9221.8949787991. The cubic root of 85043347 is about 439.7576954460.

The spelling of 85043347 in words is "eighty-five million, forty-three thousand, three hundred forty-seven".