3936863 has 4 divisors (see below), whose sum is σ = 4499280. Its totient is φ = 3374448.

The previous prime is 3936839. The next prime is 3936869. The reversal of 3936863 is 3686393.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 3936863 - 2⁶ = 3936799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3936869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 281198 + ... + 281211.

It is an arithmetic number, because the mean of its divisors is an integer number (1124820).

Almost surely, 2^3936863 is an apocalyptic number.

3936863 is a deficient number, since it is larger than the sum of its proper divisors (562417).

3936863 is an equidigital number, since it uses as much as digits as its factorization.

3936863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562416.

The product of its digits is 69984, while the sum is 38.

The square root of 3936863 is about 1984.1529678934. The cubic root of 3936863 is about 157.9004740937.

The spelling of 3936863 in words is "three million, nine hundred thirty-six thousand, eight hundred sixty-three".