85149932 has 48 divisors (see below), whose sum is σ = 176934912. Its totient is φ = 35087040.

The previous prime is 85149931. The next prime is 85149937. The reversal of 85149932 is 23994158.

It is a self number, because there is not a number n which added to its sum of digits gives 85149932.

It is not an unprimeable number, because it can be changed into a prime (85149931) 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, 228098 + ... + 228470.

It is an arithmetic number, because the mean of its divisors is an integer number (3686144).

Almost surely, 2^85149932 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85149932, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88467456).

85149932 is an abundant number, since it is smaller than the sum of its proper divisors (91784980).

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

85149932 is a wasteful number, since it uses less digits than its factorization.

85149932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678 (or 676 counting only the distinct ones).

The product of its digits is 77760, while the sum is 41.

The square root of 85149932 is about 9227.6720791324. The cubic root of 85149932 is about 439.9413351538.

The spelling of 85149932 in words is "eighty-five million, one hundred forty-nine thousand, nine hundred thirty-two".