85812243 has 32 divisors (see below), whose sum is σ = 133166592. Its totient is φ = 48576000.

The previous prime is 85812203. The next prime is 85812263. The reversal of 85812243 is 34221858.

It is not a de Polignac number, because 85812243 - 2¹⁷ = 85681171 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (85812203) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84205 + ... + 85217.

It is an arithmetic number, because the mean of its divisors is an integer number (4161456).

Almost surely, 2^85812243 is an apocalyptic number.

85812243 is a deficient number, since it is larger than the sum of its proper divisors (47354349).

85812243 is a wasteful number, since it uses less digits than its factorization.

85812243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1195.

The product of its digits is 15360, while the sum is 33.

The square root of 85812243 is about 9263.4897851728. The cubic root of 85812243 is about 441.0790372579.

The spelling of 85812243 in words is "eighty-five million, eight hundred twelve thousand, two hundred forty-three".