85544634 has 32 divisors (see below), whose sum is σ = 198291456. Its totient is φ = 24096240.

The previous prime is 85544623. The next prime is 85544639. The reversal of 85544634 is 43644558.

It is a junction number, because it is equal to n+sod(n) for n = 85544592 and 85544601.

It is not an unprimeable number, because it can be changed into a prime (85544639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11362 + ... + 17325.

It is an arithmetic number, because the mean of its divisors is an integer number (6196608).

Almost surely, 2^85544634 is an apocalyptic number.

85544634 is an abundant number, since it is smaller than the sum of its proper divisors (112746822).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85544634 is a wasteful number, since it uses less digits than its factorization.

85544634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28770.

The product of its digits is 230400, while the sum is 39.

The square root of 85544634 is about 9249.0342198524. The cubic root of 85544634 is about 440.6200521149.

The spelling of 85544634 in words is "eighty-five million, five hundred forty-four thousand, six hundred thirty-four".