7228389 has 8 divisors (see below), whose sum is σ = 11014720. Its totient is φ = 4130496.

The previous prime is 7228373. The next prime is 7228391. The reversal of 7228389 is 9838227.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7228389 - 2⁴ = 7228373 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 (7228399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172084 + ... + 172125.

It is an arithmetic number, because the mean of its divisors is an integer number (1376840).

Almost surely, 2^7228389 is an apocalyptic number.

It is an amenable number.

7228389 is a deficient number, since it is larger than the sum of its proper divisors (3786331).

7228389 is a wasteful number, since it uses less digits than its factorization.

7228389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344219.

The product of its digits is 48384, while the sum is 39.

The square root of 7228389 is about 2688.5663465870. The cubic root of 7228389 is about 193.3513337052.

The spelling of 7228389 in words is "seven million, two hundred twenty-eight thousand, three hundred eighty-nine".