3971101 has 4 divisors (see below), whose sum is σ = 4027104. Its totient is φ = 3915100.

The previous prime is 3971087. The next prime is 3971117. The reversal of 3971101 is 1011793.

3971101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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: 1011793 = 23 ⋅43991.

It is a cyclic number.

It is not a de Polignac number, because 3971101 - 2¹³ = 3962909 is a prime.

It is a Duffinian number.

3971101 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3971141) 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 3 ways as a sum of consecutive naturals, for example, 27895 + ... + 28036.

It is an arithmetic number, because the mean of its divisors is an integer number (1006776).

Almost surely, 2^3971101 is an apocalyptic number.

It is an amenable number.

3971101 is a deficient number, since it is larger than the sum of its proper divisors (56003).

3971101 is an equidigital number, since it uses as much as digits as its factorization.

3971101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56002.

The product of its (nonzero) digits is 189, while the sum is 22.

The square root of 3971101 is about 1992.7621533941. The cubic root of 3971101 is about 158.3568949855.

Adding to 3971101 its reverse (1011793), we get a palindrome (4982894).

The spelling of 3971101 in words is "three million, nine hundred seventy-one thousand, one hundred one".