85844266 has 4 divisors (see below), whose sum is σ = 128766402. Its totient is φ = 42922132.

The previous prime is 85844249. The next prime is 85844267. The reversal of 85844266 is 66244858.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66244858 = 2 ⋅33122429.

It can be written as a sum of positive squares in only one way, i.e., 62078641 + 23765625 = 7879^2 + 4875^2 .

It is not an unprimeable number, because it can be changed into a prime (85844267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21461065 + ... + 21461068.

Almost surely, 2^85844266 is an apocalyptic number.

85844266 is a deficient number, since it is larger than the sum of its proper divisors (42922136).

85844266 is a wasteful number, since it uses less digits than its factorization.

85844266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42922135.

The product of its digits is 368640, while the sum is 43.

The square root of 85844266 is about 9265.2180762246. The cubic root of 85844266 is about 441.1338970188.

The spelling of 85844266 in words is "eighty-five million, eight hundred forty-four thousand, two hundred sixty-six".