85844650 has 12 divisors (see below), whose sum is σ = 159671142. Its totient is φ = 34337840.

The previous prime is 85844623. The next prime is 85844651. The reversal of 85844650 is 5644858.

It can be written as a sum of positive squares in 3 ways, for example, as 43996689 + 41847961 = 6633^2 + 6469^2 .

It is not an unprimeable number, because it can be changed into a prime (85844651) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 858397 + ... + 858496.

Almost surely, 2^85844650 is an apocalyptic number.

85844650 is a deficient number, since it is larger than the sum of its proper divisors (73826492).

85844650 is a wasteful number, since it uses less digits than its factorization.

85844650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1716905 (or 1716900 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 40.

The square root of 85844650 is about 9265.2387988654. The cubic root of 85844650 is about 441.1345547803.

The spelling of 85844650 in words is "eighty-five million, eight hundred forty-four thousand, six hundred fifty".