7704228 has 48 divisors (see below), whose sum is σ = 21055104. Its totient is φ = 2146560.

The previous prime is 7704217. The next prime is 7704233. The reversal of 7704228 is 8224077.

It is a junction number, because it is equal to n+sod(n) for n = 7704195 and 7704204.

It is a congruent number.

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, 2326 + ... + 4562.

It is an arithmetic number, because the mean of its divisors is an integer number (438648).

Almost surely, 2^7704228 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 7704228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10527552).

7704228 is an abundant number, since it is smaller than the sum of its proper divisors (13350876).

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

7704228 is a wasteful number, since it uses less digits than its factorization.

7704228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2292 (or 2290 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 30.

The square root of 7704228 is about 2775.6491132706. The cubic root of 7704228 is about 197.5042182510.

The spelling of 7704228 in words is "seven million, seven hundred four thousand, two hundred twenty-eight".