3897228 has 24 divisors (see below), whose sum is σ = 9210880. Its totient is φ = 1282320.

The previous prime is 3897217. The next prime is 3897241. The reversal of 3897228 is 8227983.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1108 + ... + 3003.

Almost surely, 2^3897228 is an apocalyptic number.

It is an amenable number.

3897228 is an abundant number, since it is smaller than the sum of its proper divisors (5313652).

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

3897228 is a wasteful number, since it uses less digits than its factorization.

3897228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4197 (or 4195 counting only the distinct ones).

The product of its digits is 48384, while the sum is 39.

The square root of 3897228 is about 1974.1398126779. The cubic root of 3897228 is about 157.3687896885.

The spelling of 3897228 in words is "three million, eight hundred ninety-seven thousand, two hundred twenty-eight".