7172227 has 4 divisors (see below), whose sum is σ = 7177896. Its totient is φ = 7166560.

The previous prime is 7172219. The next prime is 7172237. The reversal of 7172227 is 7222717.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 7172227 - 2³ = 7172219 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7172195 and 7172204.

It is not an unprimeable number, because it can be changed into a prime (7172237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27 + ... + 3787.

It is an arithmetic number, because the mean of its divisors is an integer number (1794474).

Almost surely, 2^7172227 is an apocalyptic number.

7172227 is a deficient number, since it is larger than the sum of its proper divisors (5669).

7172227 is a wasteful number, since it uses less digits than its factorization.

7172227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5668.

The product of its digits is 2744, while the sum is 28.

The square root of 7172227 is about 2678.1013797091. The cubic root of 7172227 is about 192.8492742495.

The spelling of 7172227 in words is "seven million, one hundred seventy-two thousand, two hundred twenty-seven".