86731760 has 20 divisors (see below), whose sum is σ = 201651528. Its totient is φ = 34692672.

The previous prime is 86731753. The next prime is 86731783. The reversal of 86731760 is 6713768.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 541994 + ... + 542153.

Almost surely, 2^86731760 is an apocalyptic number.

86731760 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

86731760 is an abundant number, since it is smaller than the sum of its proper divisors (114919768).

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

86731760 is a wasteful number, since it uses less digits than its factorization.

86731760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1084160 (or 1084154 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 86731760 is about 9312.9887791192. The cubic root of 86731760 is about 442.6488970867.

The spelling of 86731760 in words is "eighty-six million, seven hundred thirty-one thousand, seven hundred sixty".