86147760 has 80 divisors (see below), whose sum is σ = 275696640. Its totient is φ = 22229760.

The previous prime is 86147759. The next prime is 86147771. The reversal of 86147760 is 6774168.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1651 + ... + 13229.

It is an arithmetic number, because the mean of its divisors is an integer number (3446208).

Almost surely, 2^86147760 is an apocalyptic number.

86147760 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86147760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137848320).

86147760 is an abundant number, since it is smaller than the sum of its proper divisors (189548880).

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

86147760 is a wasteful number, since it uses less digits than its factorization.

86147760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11626 (or 11620 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 86147760 is about 9281.5817617473. The cubic root of 86147760 is about 441.6531474838.

The spelling of 86147760 in words is "eighty-six million, one hundred forty-seven thousand, seven hundred sixty".