4197638 has 8 divisors (see below), whose sum is σ = 6570288. Its totient is φ = 2007544.

The previous prime is 4197631. The next prime is 4197647. The reversal of 4197638 is 8367914.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4197631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45581 + ... + 45672.

It is an arithmetic number, because the mean of its divisors is an integer number (821286).

Almost surely, 2^4197638 is an apocalyptic number.

4197638 is a deficient number, since it is larger than the sum of its proper divisors (2372650).

4197638 is a wasteful number, since it uses less digits than its factorization.

4197638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91278.

The product of its digits is 36288, while the sum is 38.

The square root of 4197638 is about 2048.8138031554. The cubic root of 4197638 is about 161.3126135463.

It can be divided in two parts, 41 and 97638, that added together give a palindrome (97679).

The spelling of 4197638 in words is "four million, one hundred ninety-seven thousand, six hundred thirty-eight".