86539320 has 128 divisors (see below), whose sum is σ = 329702400. Its totient is φ = 19778688.

The previous prime is 86539279. The next prime is 86539339. The reversal of 86539320 is 2393568.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 1837 + ... + 13283.

It is an arithmetic number, because the mean of its divisors is an integer number (2575800).

Almost surely, 2^86539320 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 86539320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164851200).

86539320 is an abundant number, since it is smaller than the sum of its proper divisors (243163080).

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

86539320 is a wasteful number, since it uses less digits than its factorization.

86539320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11474 (or 11464 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 86539320 is about 9302.6512349975. The cubic root of 86539320 is about 442.3212722620.

The spelling of 86539320 in words is "eighty-six million, five hundred thirty-nine thousand, three hundred twenty".