6197638 has 4 divisors (see below), whose sum is σ = 9296460. Its totient is φ = 3098818.

The previous prime is 6197617. The next prime is 6197641. The reversal of 6197638 is 8367916.

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

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 6197638.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1549408 + ... + 1549411.

It is an arithmetic number, because the mean of its divisors is an integer number (2324115).

Almost surely, 2^6197638 is an apocalyptic number.

6197638 is a deficient number, since it is larger than the sum of its proper divisors (3098822).

6197638 is a wasteful number, since it uses less digits than its factorization.

6197638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3098821.

The product of its digits is 54432, while the sum is 40.

The square root of 6197638 is about 2489.5055734021. The cubic root of 6197638 is about 183.6857229636.

The spelling of 6197638 in words is "six million, one hundred ninety-seven thousand, six hundred thirty-eight".