7678228 has 12 divisors (see below), whose sum is σ = 14021280. Its totient is φ = 3672152.

The previous prime is 7678217. The next prime is 7678273. The reversal of 7678228 is 8228767.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41638 + ... + 41821.

It is an arithmetic number, because the mean of its divisors is an integer number (1168440).

Almost surely, 2^7678228 is an apocalyptic number.

It is an amenable number.

7678228 is a deficient number, since it is larger than the sum of its proper divisors (6343052).

7678228 is a wasteful number, since it uses less digits than its factorization.

7678228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83486 (or 83484 counting only the distinct ones).

The product of its digits is 75264, while the sum is 40.

The square root of 7678228 is about 2770.9615659550. The cubic root of 7678228 is about 197.2817907244.

The spelling of 7678228 in words is "seven million, six hundred seventy-eight thousand, two hundred twenty-eight".