90574085 has 32 divisors (see below), whose sum is σ = 127775232. Its totient is φ = 60353280.

The previous prime is 90574063. The next prime is 90574097. The reversal of 90574085 is 58047509.

It is not a de Polignac number, because 90574085 - 2⁶ = 90574021 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 291080 + ... + 291390.

It is an arithmetic number, because the mean of its divisors is an integer number (3992976).

Almost surely, 2^90574085 is an apocalyptic number.

90574085 is the 5495-th octagonal number.

It is an amenable number.

90574085 is a deficient number, since it is larger than the sum of its proper divisors (37201147).

90574085 is a wasteful number, since it uses less digits than its factorization.

90574085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533.

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 90574085 is about 9517.0418198093. The cubic root of 90574085 is about 449.0913103416.

The spelling of 90574085 in words is "ninety million, five hundred seventy-four thousand, eighty-five".