3958197 has 4 divisors (see below), whose sum is σ = 5277600. Its totient is φ = 2638796.

The previous prime is 3958183. The next prime is 3958211. The reversal of 3958197 is 7918593.

It is a happy number.

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 an interprime number because it is at equal distance from previous prime (3958183) and next prime (3958211).

It is a cyclic number.

It is not a de Polignac number, because 3958197 - 2⁷ = 3958069 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3958147) 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, 659697 + ... + 659702.

It is an arithmetic number, because the mean of its divisors is an integer number (1319400).

Almost surely, 2^3958197 is an apocalyptic number.

It is an amenable number.

3958197 is a deficient number, since it is larger than the sum of its proper divisors (1319403).

3958197 is a wasteful number, since it uses less digits than its factorization.

3958197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1319402.

The product of its digits is 68040, while the sum is 42.

The square root of 3958197 is about 1989.5218018408. The cubic root of 3958197 is about 158.1851831819.

The spelling of 3958197 in words is "three million, nine hundred fifty-eight thousand, one hundred ninety-seven".