4097638 has 4 divisors (see below), whose sum is σ = 6146460. Its totient is φ = 2048818.

The previous prime is 4097633. The next prime is 4097647. The reversal of 4097638 is 8367904.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 4097597 and 4097606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4097633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1024408 + ... + 1024411.

It is an arithmetic number, because the mean of its divisors is an integer number (1536615).

Almost surely, 2^4097638 is an apocalyptic number.

4097638 is a deficient number, since it is larger than the sum of its proper divisors (2048822).

4097638 is a wasteful number, since it uses less digits than its factorization.

4097638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2048821.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 4097638 is about 2024.2623347778. The cubic root of 4097638 is about 160.0213252826.

It can be divided in two parts, 40976 and 38, that added together give a palindrome (41014).

The spelling of 4097638 in words is "four million, ninety-seven thousand, six hundred thirty-eight".