85344243 has 4 divisors (see below), whose sum is σ = 113792328. Its totient is φ = 56896160.

The previous prime is 85344241. The next prime is 85344251. The reversal of 85344243 is 34244358.

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 85344243 - 2¹ = 85344241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85344241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14224038 + ... + 14224043.

It is an arithmetic number, because the mean of its divisors is an integer number (28448082).

Almost surely, 2^85344243 is an apocalyptic number.

85344243 is a deficient number, since it is larger than the sum of its proper divisors (28448085).

85344243 is a wasteful number, since it uses less digits than its factorization.

85344243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28448084.

The product of its digits is 46080, while the sum is 33.

The square root of 85344243 is about 9238.1947911916. The cubic root of 85344243 is about 440.2757276602.

The spelling of 85344243 in words is "eighty-five million, three hundred forty-four thousand, two hundred forty-three".