85861632 has 36 divisors (see below), whose sum is σ = 228519200. Its totient is φ = 28620288.

The previous prime is 85861631. The next prime is 85861681. The reversal of 85861632 is 23616858.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85861631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55132 + ... + 56667.

Almost surely, 2^85861632 is an apocalyptic number.

It is an amenable number.

85861632 is an abundant number, since it is smaller than the sum of its proper divisors (142657568).

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

85861632 is a wasteful number, since it uses less digits than its factorization.

85861632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111818 (or 111804 counting only the distinct ones).

The product of its digits is 69120, while the sum is 39.

The square root of 85861632 is about 9266.1551897214. The cubic root of 85861632 is about 441.1636416369.

The spelling of 85861632 in words is "eighty-five million, eight hundred sixty-one thousand, six hundred thirty-two".