86705712 has 60 divisors (see below), whose sum is σ = 256936680. Its totient is φ = 27201024.

The previous prime is 86705711. The next prime is 86705743. The reversal of 86705712 is 21750768.

86705712 is a `hidden beast` number, since 86 + 7 + 0 + 571 + 2 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86705711) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15262 + ... + 20157.

It is an arithmetic number, because the mean of its divisors is an integer number (4282278).

Almost surely, 2^86705712 is an apocalyptic number.

It is an amenable number.

86705712 is an abundant number, since it is smaller than the sum of its proper divisors (170230968).

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

86705712 is a wasteful number, since it uses less digits than its factorization.

86705712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35450 (or 35441 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 86705712 is about 9311.5901971683. The cubic root of 86705712 is about 442.6045793230.

The spelling of 86705712 in words is "eighty-six million, seven hundred five thousand, seven hundred twelve".