86520280 has 96 divisors (see below), whose sum is σ = 247101840. Its totient is φ = 26960640.

The previous prime is 86520251. The next prime is 86520289. The reversal of 86520280 is 8202568.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86520289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19554 + ... + 23566.

Almost surely, 2^86520280 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 86520280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123550920).

86520280 is an abundant number, since it is smaller than the sum of its proper divisors (160581560).

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

86520280 is a wasteful number, since it uses less digits than its factorization.

86520280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4049 (or 4038 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 86520280 is about 9301.6278145279. The cubic root of 86520280 is about 442.2888306900.

The spelling of 86520280 in words is "eighty-six million, five hundred twenty thousand, two hundred eighty".