4397638 has 8 divisors (see below), whose sum is σ = 7538832. Its totient is φ = 1884696.

The previous prime is 4397599. The next prime is 4397651. The reversal of 4397638 is 8367934.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 4397638.

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, 157045 + ... + 157072.

It is an arithmetic number, because the mean of its divisors is an integer number (942354).

Almost surely, 2^4397638 is an apocalyptic number.

4397638 is a deficient number, since it is larger than the sum of its proper divisors (3141194).

4397638 is a wasteful number, since it uses less digits than its factorization.

4397638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314126.

The product of its digits is 108864, while the sum is 40.

The square root of 4397638 is about 2097.0546011013. The cubic root of 4397638 is about 163.8349271014.

The spelling of 4397638 in words is "four million, three hundred ninety-seven thousand, six hundred thirty-eight".