7229389 has 4 divisors (see below), whose sum is σ = 7241724. Its totient is φ = 7217056.

The previous prime is 7229377. The next prime is 7229419. The reversal of 7229389 is 9839227.

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

It can be written as a sum of positive squares in 2 ways, for example, as 100489 + 7128900 = 317^2 + 2670^2 .

It is a cyclic number.

It is not a de Polignac number, because 7229389 - 2¹⁵ = 7196621 is a prime.

It is a Duffinian number.

7229389 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7239389) 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, 5242 + ... + 6475.

It is an arithmetic number, because the mean of its divisors is an integer number (1810431).

Almost surely, 2^7229389 is an apocalyptic number.

It is an amenable number.

7229389 is a deficient number, since it is larger than the sum of its proper divisors (12335).

7229389 is a wasteful number, since it uses less digits than its factorization.

7229389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12334.

The product of its digits is 54432, while the sum is 40.

The square root of 7229389 is about 2688.7523128767. The cubic root of 7229389 is about 193.3602495885.

The spelling of 7229389 in words is "seven million, two hundred twenty-nine thousand, three hundred eighty-nine".