90663922 has 8 divisors (see below), whose sum is σ = 136081116. Its totient is φ = 45303552.

The previous prime is 90663919. The next prime is 90663929. The reversal of 90663922 is 22936609.

It can be written as a sum of positive squares in 2 ways, for example, as 60512841 + 30151081 = 7779^2 + 5491^2 .

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

It is not an unprimeable number, because it can be changed into a prime (90663929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9963 + ... + 16750.

Almost surely, 2^90663922 is an apocalyptic number.

90663922 is a deficient number, since it is larger than the sum of its proper divisors (45417194).

90663922 is a wasteful number, since it uses less digits than its factorization.

90663922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28412.

The product of its (nonzero) digits is 34992, while the sum is 37.

The square root of 90663922 is about 9521.7604464721. The cubic root of 90663922 is about 449.2397401583.

The spelling of 90663922 in words is "ninety million, six hundred sixty-three thousand, nine hundred twenty-two".