86906065 has 4 divisors (see below), whose sum is σ = 104287284. Its totient is φ = 69524848.

The previous prime is 86906041. The next prime is 86906077. The reversal of 86906065 is 56060968.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27415696 + 59490369 = 5236^2 + 7713^2 .

It is a cyclic number.

It is not a de Polignac number, because 86906065 - 2⁵ = 86906033 is a prime.

It is a Duffinian 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, 8690602 + ... + 8690611.

It is an arithmetic number, because the mean of its divisors is an integer number (26071821).

Almost surely, 2^86906065 is an apocalyptic number.

It is an amenable number.

86906065 is a deficient number, since it is larger than the sum of its proper divisors (17381219).

86906065 is a wasteful number, since it uses less digits than its factorization.

86906065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17381218.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 86906065 is about 9322.3422485983. The cubic root of 86906065 is about 442.9452294677.

The spelling of 86906065 in words is "eighty-six million, nine hundred six thousand, sixty-five".