3873217 has 4 divisors (see below), whose sum is σ = 3893076. Its totient is φ = 3853360.

The previous prime is 3873209. The next prime is 3873239. The reversal of 3873217 is 7123783.

3873217 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.

It can be written as a sum of positive squares in 2 ways, for example, as 3182656 + 690561 = 1784^2 + 831^2 .

It is a cyclic number.

It is not a de Polignac number, because 3873217 - 2³ = 3873209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3873257) 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, 9634 + ... + 10027.

It is an arithmetic number, because the mean of its divisors is an integer number (973269).

Almost surely, 2^3873217 is an apocalyptic number.

It is an amenable number.

3873217 is a deficient number, since it is larger than the sum of its proper divisors (19859).

3873217 is a wasteful number, since it uses less digits than its factorization.

3873217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19858.

The product of its digits is 7056, while the sum is 31.

The square root of 3873217 is about 1968.0490339420. The cubic root of 3873217 is about 157.0449382497.

The spelling of 3873217 in words is "three million, eight hundred seventy-three thousand, two hundred seventeen".