90285611 has 4 divisors (see below), whose sum is σ = 97230672. Its totient is φ = 83340552.

The previous prime is 90285607. The next prime is 90285619. The reversal of 90285611 is 11658209.

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

It is a cyclic number.

It is not a de Polignac number, because 90285611 - 2² = 90285607 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90285619) 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, 3472511 + ... + 3472536.

It is an arithmetic number, because the mean of its divisors is an integer number (24307668).

Almost surely, 2^90285611 is an apocalyptic number.

90285611 is a deficient number, since it is larger than the sum of its proper divisors (6945061).

90285611 is a wasteful number, since it uses less digits than its factorization.

90285611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6945060.

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 90285611 is about 9501.8740783069. The cubic root of 90285611 is about 448.6140253707.

The spelling of 90285611 in words is "ninety million, two hundred eighty-five thousand, six hundred eleven".