90354085 has 4 divisors (see below), whose sum is σ = 108424908. Its totient is φ = 72283264.

The previous prime is 90354083. The next prime is 90354107. The reversal of 90354085 is 58045309.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58045309 = 7 ⋅8292187.

It can be written as a sum of positive squares in 2 ways, for example, as 12173121 + 78180964 = 3489^2 + 8842^2 .

It is a cyclic number.

It is not a de Polignac number, because 90354085 - 2¹ = 90354083 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90354085.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90354083) by changing a digit.

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, 9035404 + ... + 9035413.

It is an arithmetic number, because the mean of its divisors is an integer number (27106227).

Almost surely, 2^90354085 is an apocalyptic number.

It is an amenable number.

90354085 is a deficient number, since it is larger than the sum of its proper divisors (18070823).

90354085 is a wasteful number, since it uses less digits than its factorization.

90354085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18070822.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 90354085 is about 9505.4765793199. The cubic root of 90354085 is about 448.7274086438.

The spelling of 90354085 in words is "ninety million, three hundred fifty-four thousand, eighty-five".