3872843 has 4 divisors (see below), whose sum is σ = 4170768. Its totient is φ = 3574920.

The previous prime is 3872839. The next prime is 3872851. The reversal of 3872843 is 3482783.

3872843 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 an emirpimes, since its reverse is a distinct semiprime: 3482783 = 101 ⋅34483.

It is a cyclic number.

It is not a de Polignac number, because 3872843 - 2² = 3872839 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3872833) 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, 148943 + ... + 148968.

It is an arithmetic number, because the mean of its divisors is an integer number (1042692).

Almost surely, 2^3872843 is an apocalyptic number.

3872843 is a deficient number, since it is larger than the sum of its proper divisors (297925).

3872843 is a wasteful number, since it uses less digits than its factorization.

3872843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297924.

The product of its digits is 32256, while the sum is 35.

The square root of 3872843 is about 1967.9540136904. The cubic root of 3872843 is about 157.0398833046.

The spelling of 3872843 in words is "three million, eight hundred seventy-two thousand, eight hundred forty-three".