4000197 has 8 divisors (see below), whose sum is σ = 5421280. Its totient is φ = 2622960.

The previous prime is 4000189. The next prime is 4000237. The reversal of 4000197 is 7910004.

4000197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 4000197 - 2³ = 4000189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4000897) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 10747 + ... + 11112.

It is an arithmetic number, because the mean of its divisors is an integer number (677660).

Almost surely, 2^4000197 is an apocalyptic number.

It is an amenable number.

4000197 is a deficient number, since it is larger than the sum of its proper divisors (1421083).

4000197 is a wasteful number, since it uses less digits than its factorization.

4000197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21923.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 4000197 is about 2000.0492493936. The cubic root of 4000197 is about 158.7427111374.

The spelling of 4000197 in words is "four million, one hundred ninety-seven", and thus it is an aban number.