3984863 has 4 divisors (see below), whose sum is σ = 4092600. Its totient is φ = 3877128.

The previous prime is 3984859. The next prime is 3984917. The reversal of 3984863 is 3684893.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3684893 = 263 ⋅14011.

It is a cyclic number.

It is not a de Polignac number, because 3984863 - 2² = 3984859 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 3984863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3984823) 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, 53813 + ... + 53886.

It is an arithmetic number, because the mean of its divisors is an integer number (1023150).

Almost surely, 2^3984863 is an apocalyptic number.

3984863 is a deficient number, since it is larger than the sum of its proper divisors (107737).

3984863 is a wasteful number, since it uses less digits than its factorization.

3984863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107736.

The product of its digits is 124416, while the sum is 41.

The square root of 3984863 is about 1996.2121630729. The cubic root of 3984863 is about 158.5396146673.

The spelling of 3984863 in words is "three million, nine hundred eighty-four thousand, eight hundred sixty-three".