4397128 has 8 divisors (see below), whose sum is σ = 8244630. Its totient is φ = 2198560.

The previous prime is 4397087. The next prime is 4397131. The reversal of 4397128 is 8217934.

It can be written as a sum of positive squares in only one way, i.e., 3319684 + 1077444 = 1822^2 + 1038^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 4397093 and 4397102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274813 + ... + 274828.

Almost surely, 2^4397128 is an apocalyptic number.

It is an amenable number.

4397128 is a deficient number, since it is larger than the sum of its proper divisors (3847502).

4397128 is a wasteful number, since it uses less digits than its factorization.

4397128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549647 (or 549643 counting only the distinct ones).

The product of its digits is 12096, while the sum is 34.

The square root of 4397128 is about 2096.9329984527. The cubic root of 4397128 is about 163.8285934709.

The spelling of 4397128 in words is "four million, three hundred ninety-seven thousand, one hundred twenty-eight".