3911838 has 16 divisors (see below), whose sum is σ = 8941440. Its totient is φ = 1117656.

The previous prime is 3911821. The next prime is 3911849. The reversal of 3911838 is 8381193.

It is a junction number, because it is equal to n+sod(n) for n = 3911799 and 3911808.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46528 + ... + 46611.

It is an arithmetic number, because the mean of its divisors is an integer number (558840).

Almost surely, 2^3911838 is an apocalyptic number.

3911838 is an abundant number, since it is smaller than the sum of its proper divisors (5029602).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3911838 is a wasteful number, since it uses less digits than its factorization.

3911838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93151.

The product of its digits is 5184, while the sum is 33.

The square root of 3911838 is about 1977.8366970000. The cubic root of 3911838 is about 157.5651934695.

The spelling of 3911838 in words is "three million, nine hundred eleven thousand, eight hundred thirty-eight".