3911863 has 4 divisors (see below), whose sum is σ = 4081968. Its totient is φ = 3741760.

The previous prime is 3911861. The next prime is 3911879. The reversal of 3911863 is 3681193.

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

It is a cyclic number.

It is not a de Polignac number, because 3911863 - 2¹ = 3911861 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 (3911861) 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, 85018 + ... + 85063.

It is an arithmetic number, because the mean of its divisors is an integer number (1020492).

Almost surely, 2^3911863 is an apocalyptic number.

3911863 is a deficient number, since it is larger than the sum of its proper divisors (170105).

3911863 is a wasteful number, since it uses less digits than its factorization.

3911863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170104.

The product of its digits is 3888, while the sum is 31.

The square root of 3911863 is about 1977.8430170264. The cubic root of 3911863 is about 157.5655291277.

It can be divided in two parts, 3911 and 863, that added together give a palindrome (4774).

The spelling of 3911863 in words is "three million, nine hundred eleven thousand, eight hundred sixty-three".