3964228 has 6 divisors (see below), whose sum is σ = 6937406. Its totient is φ = 1982112.

The previous prime is 3964201. The next prime is 3964229. The reversal of 3964228 is 8224693.

It can be written as a sum of positive squares in only one way, i.e., 3873024 + 91204 = 1968^2 + 302^2 .

It is a d-powerful number, because it can be written as 3¹¹ + 9 + 6⁸ + 4³ + 2¹¹ + 2¹³ + 8⁷ .

It is a junction number, because it is equal to n+sod(n) for n = 3964193 and 3964202.

It is not an unprimeable number, because it can be changed into a prime (3964229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 495525 + ... + 495532.

Almost surely, 2^3964228 is an apocalyptic number.

It is an amenable number.

3964228 is a deficient number, since it is larger than the sum of its proper divisors (2973178).

3964228 is a wasteful number, since it uses less digits than its factorization.

3964228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991061 (or 991059 counting only the distinct ones).

The product of its digits is 20736, while the sum is 34.

The square root of 3964228 is about 1991.0369157803. The cubic root of 3964228 is about 158.2654832708.

It can be divided in two parts, 396 and 4228, that added together give a square (4624 = 68²).

The spelling of 3964228 in words is "three million, nine hundred sixty-four thousand, two hundred twenty-eight".