86710505 has 16 divisors (see below), whose sum is σ = 119069184. Its totient is φ = 59382720.

The previous prime is 86710453. The next prime is 86710537. The reversal of 86710505 is 50501768.

It is not a de Polignac number, because 86710505 - 2⁸ = 86710249 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48935 + ... + 50675.

It is an arithmetic number, because the mean of its divisors is an integer number (7441824).

Almost surely, 2^86710505 is an apocalyptic number.

It is an amenable number.

86710505 is a deficient number, since it is larger than the sum of its proper divisors (32358679).

86710505 is a wasteful number, since it uses less digits than its factorization.

86710505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3176.

The product of its (nonzero) digits is 8400, while the sum is 32.

The square root of 86710505 is about 9311.8475610375. The cubic root of 86710505 is about 442.6127347437.

The spelling of 86710505 in words is "eighty-six million, seven hundred ten thousand, five hundred five".