9972227 has 4 divisors (see below), whose sum is σ = 9996336. Its totient is φ = 9948120.

The previous prime is 9972199. The next prime is 9972233. The reversal of 9972227 is 7222799.

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

It is a cyclic number.

It is not a de Polignac number, because 9972227 - 2¹⁶ = 9906691 is a prime.

It is a super-2 number, since 2×9972227² = 198890622679058, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9972527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11423 + ... + 12264.

It is an arithmetic number, because the mean of its divisors is an integer number (2499084).

Almost surely, 2^9972227 is an apocalyptic number.

9972227 is a deficient number, since it is larger than the sum of its proper divisors (24109).

9972227 is a wasteful number, since it uses less digits than its factorization.

9972227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24108.

The product of its digits is 31752, while the sum is 38.

The square root of 9972227 is about 3157.8833100670. The cubic root of 9972227 is about 215.2438336911.

The spelling of 9972227 in words is "nine million, nine hundred seventy-two thousand, two hundred twenty-seven".