3964197 has 4 divisors (see below), whose sum is σ = 5285600. Its totient is φ = 2642796.

The previous prime is 3964193. The next prime is 3964201. The reversal of 3964197 is 7914693.

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, and also an emirpimes, since its reverse is a distinct semiprime: 7914693 = 3 ⋅2638231.

It is an interprime number because it is at equal distance from previous prime (3964193) and next prime (3964201).

It is not a de Polignac number, because 3964197 - 2² = 3964193 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3964193) 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, 660697 + ... + 660702.

It is an arithmetic number, because the mean of its divisors is an integer number (1321400).

Almost surely, 2^3964197 is an apocalyptic number.

It is an amenable number.

3964197 is a deficient number, since it is larger than the sum of its proper divisors (1321403).

3964197 is a wasteful number, since it uses less digits than its factorization.

3964197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1321402.

The product of its digits is 40824, while the sum is 39.

The square root of 3964197 is about 1991.0291308768. The cubic root of 3964197 is about 158.2650707279.

The spelling of 3964197 in words is "three million, nine hundred sixty-four thousand, one hundred ninety-seven".