90006065 has 4 divisors (see below), whose sum is σ = 108007284. Its totient is φ = 72004848.

The previous prime is 90006047. The next prime is 90006071. The reversal of 90006065 is 56060009.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56060009 = 131 ⋅427939.

It can be written as a sum of positive squares in 2 ways, for example, as 15649936 + 74356129 = 3956^2 + 8623^2 .

It is a cyclic number.

It is not a de Polignac number, because 90006065 - 2¹² = 90001969 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 3 ways as a sum of consecutive naturals, for example, 9000602 + ... + 9000611.

It is an arithmetic number, because the mean of its divisors is an integer number (27001821).

Almost surely, 2^90006065 is an apocalyptic number.

It is an amenable number.

90006065 is a deficient number, since it is larger than the sum of its proper divisors (18001219).

90006065 is a wasteful number, since it uses less digits than its factorization.

90006065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18001218.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 90006065 is about 9487.1526286869. The cubic root of 90006065 is about 448.1505409925.

The spelling of 90006065 in words is "ninety million, six thousand, sixty-five".