86709516 has 12 divisors (see below), whose sum is σ = 202322232. Its totient is φ = 28903168.

The previous prime is 86709499. The next prime is 86709523. The reversal of 86709516 is 61590768.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

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 3 ways as a sum of consecutive naturals, for example, 3612885 + ... + 3612908.

It is an arithmetic number, because the mean of its divisors is an integer number (16860186).

Almost surely, 2^86709516 is an apocalyptic number.

It is an amenable number.

86709516 is an abundant number, since it is smaller than the sum of its proper divisors (115612716).

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

86709516 is a wasteful number, since it uses less digits than its factorization.

86709516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7225800 (or 7225798 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 86709516 is about 9311.7944564944. The cubic root of 86709516 is about 442.6110519577.

The spelling of 86709516 in words is "eighty-six million, seven hundred nine thousand, five hundred sixteen".