7225689 has 4 divisors (see below), whose sum is σ = 9634256. Its totient is φ = 4817124.

The previous prime is 7225679. The next prime is 7225709. The reversal of 7225689 is 9865227.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 7225689 - 2⁹ = 7225177 is a prime.

It is a d-powerful number, because it can be written as 7 + 2¹⁶ + 2²¹ + 5² + 6⁷ + 8² + 9⁷ .

It is a Duffinian number.

7225689 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7225679) 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, 1204279 + ... + 1204284.

It is an arithmetic number, because the mean of its divisors is an integer number (2408564).

Almost surely, 2^7225689 is an apocalyptic number.

It is an amenable number.

7225689 is a deficient number, since it is larger than the sum of its proper divisors (2408567).

7225689 is a wasteful number, since it uses less digits than its factorization.

7225689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2408566.

The product of its digits is 60480, while the sum is 39.

The square root of 7225689 is about 2688.0641733411. The cubic root of 7225689 is about 193.3272567122.

The spelling of 7225689 in words is "seven million, two hundred twenty-five thousand, six hundred eighty-nine".