9001447922 has 4 divisors (see below), whose sum is σ = 13502171886. Its totient is φ = 4500723960.

The previous prime is 9001447921. The next prime is 9001447927. The reversal of 9001447922 is 2297441009.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2297441009 = 3253 ⋅706253.

It can be written as a sum of positive squares in only one way, i.e., 7821456721 + 1179991201 = 88439^2 + 34351^2 .

It is not an unprimeable number, because it can be changed into a prime (9001447921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2250361979 + ... + 2250361982.

Almost surely, 2^9001447922 is an apocalyptic number.

9001447922 is a deficient number, since it is larger than the sum of its proper divisors (4500723964).

9001447922 is a wasteful number, since it uses less digits than its factorization.

9001447922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4500723963.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 9001447922 is about 94875.9607171385. The cubic root of 9001447922 is about 2080.1953651864.

The spelling of 9001447922 in words is "nine billion, one million, four hundred forty-seven thousand, nine hundred twenty-two".