86197705 has 16 divisors (see below), whose sum is σ = 113059008. Its totient is φ = 62568000.

The previous prime is 86197681. The next prime is 86197717. The reversal of 86197705 is 50779168.

It is not a de Polignac number, because 86197705 - 2¹¹ = 86195657 is a prime.

It is a Duffinian number.

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, 35170 + ... + 37540.

It is an arithmetic number, because the mean of its divisors is an integer number (7066188).

Almost surely, 2^86197705 is an apocalyptic number.

It is an amenable number.

86197705 is a deficient number, since it is larger than the sum of its proper divisors (26861303).

86197705 is a wasteful number, since it uses less digits than its factorization.

86197705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3048.

The product of its (nonzero) digits is 105840, while the sum is 43.

The square root of 86197705 is about 9284.2719154493. The cubic root of 86197705 is about 441.7384818944.

It can be divided in two parts, 86 and 197705, that added together give a palindrome (197791).

The spelling of 86197705 in words is "eighty-six million, one hundred ninety-seven thousand, seven hundred five".