90060085 has 4 divisors (see below), whose sum is σ = 108072108. Its totient is φ = 72048064.

The previous prime is 90060083. The next prime is 90060107. The reversal of 90060085 is 58006009.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58006009 = 53 ⋅1094453.

It can be written as a sum of positive squares in 2 ways, for example, as 11329956 + 78730129 = 3366^2 + 8873^2 .

It is a cyclic number.

It is not a de Polignac number, because 90060085 - 2¹ = 90060083 is a prime.

It is a super-2 number, since 2×90060085² = 16221637820414450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90060083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9006004 + ... + 9006013.

It is an arithmetic number, because the mean of its divisors is an integer number (27018027).

Almost surely, 2^90060085 is an apocalyptic number.

It is an amenable number.

90060085 is a deficient number, since it is larger than the sum of its proper divisors (18012023).

90060085 is a wasteful number, since it uses less digits than its factorization.

90060085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18012022.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 90060085 is about 9489.9992096944. Note that the first 3 decimals coincide. The cubic root of 90060085 is about 448.2401803242.

The spelling of 90060085 in words is "ninety million, sixty thousand, eighty-five".