7912227 has 16 divisors (see below), whose sum is σ = 11202560. Its totient is φ = 4953312.

The previous prime is 7912217. The next prime is 7912237. The reversal of 7912227 is 7222197.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (7912217) and next prime (7912237).

It is not a de Polignac number, because 7912227 - 2⁸ = 7911971 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7912194 and 7912203.

It is not an unprimeable number, because it can be changed into a prime (7912217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6693 + ... + 7785.

It is an arithmetic number, because the mean of its divisors is an integer number (700160).

Almost surely, 2^7912227 is an apocalyptic number.

7912227 is a deficient number, since it is larger than the sum of its proper divisors (3290333).

7912227 is a wasteful number, since it uses less digits than its factorization.

7912227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1242.

The product of its digits is 3528, while the sum is 30.

The square root of 7912227 is about 2812.8681092437. The cubic root of 7912227 is about 199.2658668733.

Subtracting from 7912227 its sum of digits (30), we obtain a palindrome (7912197).

The spelling of 7912227 in words is "seven million, nine hundred twelve thousand, two hundred twenty-seven".