3872917 has 2 divisors, whose sum is σ = 3872918. Its totient is φ = 3872916.

The previous prime is 3872899. The next prime is 3872929. The reversal of 3872917 is 7192783.

3872917 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3218436 + 654481 = 1794^2 + 809^2 .

It is a cyclic number.

It is not a de Polignac number, because 3872917 - 2¹¹ = 3870869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3872977) 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, 1936458 + 1936459.

It is an arithmetic number, because the mean of its divisors is an integer number (1936459).

Almost surely, 2^3872917 is an apocalyptic number.

It is an amenable number.

3872917 is a deficient number, since it is larger than the sum of its proper divisors (1).

3872917 is an equidigital number, since it uses as much as digits as its factorization.

3872917 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21168, while the sum is 37.

The square root of 3872917 is about 1967.9728148529. The cubic root of 3872917 is about 157.0408835067.

The spelling of 3872917 in words is "three million, eight hundred seventy-two thousand, nine hundred seventeen".