86615240 has 64 divisors (see below), whose sum is σ = 209986560. Its totient is φ = 32060160.

The previous prime is 86615239. The next prime is 86615251. The reversal of 86615240 is 4251668.

It is a junction number, because it is equal to n+sod(n) for n = 86615197 and 86615206.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 27002 + ... + 30038.

It is an arithmetic number, because the mean of its divisors is an integer number (3281040).

Almost surely, 2^86615240 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 86615240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104993280).

86615240 is an abundant number, since it is smaller than the sum of its proper divisors (123371320).

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

86615240 is a wasteful number, since it uses less digits than its factorization.

86615240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3102 (or 3098 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 86615240 is about 9306.7308975816. The cubic root of 86615240 is about 442.4505823286.

The spelling of 86615240 in words is "eighty-six million, six hundred fifteen thousand, two hundred forty".