990803222 has 16 divisors (see below), whose sum is σ = 1568390640. Its totient is φ = 468138528.

The previous prime is 990803221. The next prime is 990803263. The reversal of 990803222 is 222308099.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (990803221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17753 + ... + 47924.

It is an arithmetic number, because the mean of its divisors is an integer number (98024415).

Almost surely, 2^990803222 is an apocalyptic number.

990803222 is a deficient number, since it is larger than the sum of its proper divisors (577587418).

990803222 is a wasteful number, since it uses less digits than its factorization.

990803222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66095.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 990803222 is about 31477.0268926403. The cubic root of 990803222 is about 996.9249611619.

The spelling of 990803222 in words is "nine hundred ninety million, eight hundred three thousand, two hundred twenty-two".