90331822 has 24 divisors (see below), whose sum is σ = 157900176. Its totient is φ = 37966656.

The previous prime is 90331819. The next prime is 90331823. The reversal of 90331822 is 22813309.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90331823) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38178 + ... + 40474.

It is an arithmetic number, because the mean of its divisors is an integer number (6579174).

Almost surely, 2^90331822 is an apocalyptic number.

90331822 is a deficient number, since it is larger than the sum of its proper divisors (67568354).

90331822 is a wasteful number, since it uses less digits than its factorization.

90331822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2412 (or 2359 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 90331822 is about 9504.3054454284. The cubic root of 90331822 is about 448.6905505467.

The spelling of 90331822 in words is "ninety million, three hundred thirty-one thousand, eight hundred twenty-two".