3916397 has 4 divisors (see below), whose sum is σ = 4007520. Its totient is φ = 3825276.

The previous prime is 3916391. The next prime is 3916403. The reversal of 3916397 is 7936193.

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: 7936193 = 157 ⋅50549.

It is an interprime number because it is at equal distance from previous prime (3916391) and next prime (3916403).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3916397 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3916397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3916391) 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, 45497 + ... + 45582.

It is an arithmetic number, because the mean of its divisors is an integer number (1001880).

Almost surely, 2^3916397 is an apocalyptic number.

It is an amenable number.

3916397 is a deficient number, since it is larger than the sum of its proper divisors (91123).

3916397 is an equidigital number, since it uses as much as digits as its factorization.

3916397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91122.

The product of its digits is 30618, while the sum is 38.

The square root of 3916397 is about 1978.9888832432. The cubic root of 3916397 is about 157.6263804646.

The spelling of 3916397 in words is "three million, nine hundred sixteen thousand, three hundred ninety-seven".