7228879 has 4 divisors (see below), whose sum is σ = 8261584. Its totient is φ = 6196176.

The previous prime is 7228867. The next prime is 7228883. The reversal of 7228879 is 9788227.

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

It is not a de Polignac number, because 7228879 - 2¹¹ = 7226831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7228889) 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, 516342 + ... + 516355.

It is an arithmetic number, because the mean of its divisors is an integer number (2065396).

Almost surely, 2^7228879 is an apocalyptic number.

7228879 is a deficient number, since it is larger than the sum of its proper divisors (1032705).

7228879 is a wasteful number, since it uses less digits than its factorization.

7228879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1032704.

The product of its digits is 112896, while the sum is 43.

The square root of 7228879 is about 2688.6574716762. The cubic root of 7228879 is about 193.3557025907.

The spelling of 7228879 in words is "seven million, two hundred twenty-eight thousand, eight hundred seventy-nine".