90227805 has 16 divisors (see below), whose sum is σ = 144561984. Its totient is φ = 48055680.

The previous prime is 90227791. The next prime is 90227821. The reversal of 90227805 is 50872209.

It is not a de Polignac number, because 90227805 - 2⁶ = 90227741 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8457 + ... + 15873.

It is an arithmetic number, because the mean of its divisors is an integer number (9035124).

Almost surely, 2^90227805 is an apocalyptic number.

It is an amenable number.

90227805 is a deficient number, since it is larger than the sum of its proper divisors (54334179).

90227805 is a wasteful number, since it uses less digits than its factorization.

90227805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8236.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 90227805 is about 9498.8317702758. The cubic root of 90227805 is about 448.5182621642.

The spelling of 90227805 in words is "ninety million, two hundred twenty-seven thousand, eight hundred five".