3972107 has 2 divisors, whose sum is σ = 3972108. Its totient is φ = 3972106.

The previous prime is 3972103. The next prime is 3972113. The reversal of 3972107 is 7012793.

It is a happy number.

3972107 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (7012793) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3972107 - 2² = 3972103 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3972107.

It is not a weakly prime, because it can be changed into another prime (3972103) 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 as a sum of consecutive naturals, namely, 1986053 + 1986054.

It is an arithmetic number, because the mean of its divisors is an integer number (1986054).

Almost surely, 2^3972107 is an apocalyptic number.

3972107 is a deficient number, since it is larger than the sum of its proper divisors (1).

3972107 is an equidigital number, since it uses as much as digits as its factorization.

3972107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2646, while the sum is 29.

The square root of 3972107 is about 1993.0145508751. The cubic root of 3972107 is about 158.3702660536.

The spelling of 3972107 in words is "three million, nine hundred seventy-two thousand, one hundred seven".