438197 has 4 divisors (see below), whose sum is σ = 461280. Its totient is φ = 415116.

The previous prime is 438169. The next prime is 438203. The reversal of 438197 is 791834.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 438197 - 2⁶ = 438133 is a prime.

It is a super-2 number, since 2×438197² = 384033221618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (408197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11513 + ... + 11550.

It is an arithmetic number, because the mean of its divisors is an integer number (115320).

2⁴³⁸¹⁹⁷ is an apocalyptic number.

It is an amenable number.

438197 is a deficient number, since it is larger than the sum of its proper divisors (23083).

438197 is a wasteful number, since it uses less digits than its factorization.

438197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23082.

The product of its digits is 6048, while the sum is 32.

The square root of 438197 is about 661.9645005588. The cubic root of 438197 is about 75.9550172406.

The spelling of 438197 in words is "four hundred thirty-eight thousand, one hundred ninety-seven".