7089228 has 48 divisors (see below), whose sum is σ = 18839520. Its totient is φ = 2304000.

The previous prime is 7089217. The next prime is 7089239. The reversal of 7089228 is 8229807.

It is an interprime number because it is at equal distance from previous prime (7089217) and next prime (7089239).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 7089192 and 7089201.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3628 + ... + 5228.

It is an arithmetic number, because the mean of its divisors is an integer number (392490).

Almost surely, 2^7089228 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7089228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9419760).

7089228 is an abundant number, since it is smaller than the sum of its proper divisors (11750292).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7089228 is a wasteful number, since it uses less digits than its factorization.

7089228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1655 (or 1647 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 7089228 is about 2662.5604218496. The cubic root of 7089228 is about 192.1024843494.

It can be divided in two parts, 70 and 89228, that added together give a palindrome (89298).

The spelling of 7089228 in words is "seven million, eighty-nine thousand, two hundred twenty-eight".