7222789 has 8 divisors (see below), whose sum is σ = 8283968. Its totient is φ = 6168960.

The previous prime is 7222781. The next prime is 7222799. The reversal of 7222789 is 9872227.

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

It is not a de Polignac number, because 7222789 - 2³ = 7222781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7222781) 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 7 ways as a sum of consecutive naturals, for example, 469 + ... + 3829.

It is an arithmetic number, because the mean of its divisors is an integer number (1035496).

Almost surely, 2^7222789 is an apocalyptic number.

It is an amenable number.

7222789 is a deficient number, since it is larger than the sum of its proper divisors (1061179).

7222789 is a wasteful number, since it uses less digits than its factorization.

7222789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3675.

The product of its digits is 28224, while the sum is 37.

The square root of 7222789 is about 2687.5246975609. The cubic root of 7222789 is about 193.3013895565.

The spelling of 7222789 in words is "seven million, two hundred twenty-two thousand, seven hundred eighty-nine".