90916222 has 4 divisors (see below), whose sum is σ = 136374336. Its totient is φ = 45458110.

The previous prime is 90916219. The next prime is 90916223. The reversal of 90916222 is 22261909.

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

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90916223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22729054 + ... + 22729057.

It is an arithmetic number, because the mean of its divisors is an integer number (34093584).

Almost surely, 2^90916222 is an apocalyptic number.

90916222 is a deficient number, since it is larger than the sum of its proper divisors (45458114).

90916222 is a wasteful number, since it uses less digits than its factorization.

90916222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45458113.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 90916222 is about 9534.9998426848. Note that the first 3 decimals coincide. The cubic root of 90916222 is about 449.6560697149.

The spelling of 90916222 in words is "ninety million, nine hundred sixteen thousand, two hundred twenty-two".