3971196 has 18 divisors (see below), whose sum is σ = 10038392. Its totient is φ = 1323720.

The previous prime is 3971167. The next prime is 3971207. The reversal of 3971196 is 6911793.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 110311 = 3971196 / (3 + 9 + 7 + 1 + 1 + 9 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 3971196.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55120 + ... + 55191.

Almost surely, 2^3971196 is an apocalyptic number.

3971196 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

3971196 is an abundant number, since it is smaller than the sum of its proper divisors (6067196).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3971196 is a wasteful number, since it uses less digits than its factorization.

3971196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110321 (or 110316 counting only the distinct ones).

The product of its digits is 10206, while the sum is 36.

The square root of 3971196 is about 1992.7859895132. The cubic root of 3971196 is about 158.3581577574.

The spelling of 3971196 in words is "three million, nine hundred seventy-one thousand, one hundred ninety-six".