85843380 has 96 divisors (see below), whose sum is σ = 275998464. Its totient is φ = 19528704.

The previous prime is 85843379. The next prime is 85843399. The reversal of 85843380 is 8334858.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 131134 + ... + 131786.

It is an arithmetic number, because the mean of its divisors is an integer number (2874984).

Almost surely, 2^85843380 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 85843380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137999232).

85843380 is an abundant number, since it is smaller than the sum of its proper divisors (190155084).

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

85843380 is a wasteful number, since it uses less digits than its factorization.

85843380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 985 (or 983 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 39.

The square root of 85843380 is about 9265.1702628716. The cubic root of 85843380 is about 441.1323793636.

The spelling of 85843380 in words is "eighty-five million, eight hundred forty-three thousand, three hundred eighty".