90889222 has 8 divisors (see below), whose sum is σ = 136380816. Its totient is φ = 45428952.

The previous prime is 90889151. The next prime is 90889231. The reversal of 90889222 is 22298809.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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, 1788 + ... + 13600.

It is an arithmetic number, because the mean of its divisors is an integer number (17047602).

Almost surely, 2^90889222 is an apocalyptic number.

90889222 is a deficient number, since it is larger than the sum of its proper divisors (45491594).

90889222 is a wasteful number, since it uses less digits than its factorization.

90889222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15662.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 90889222 is about 9533.5839011360. The cubic root of 90889222 is about 449.6115528486.

The spelling of 90889222 in words is "ninety million, eight hundred eighty-nine thousand, two hundred twenty-two".