4081911 has 4 divisors (see below), whose sum is σ = 5442552. Its totient is φ = 2721272.

The previous prime is 4081897. The next prime is 4081933. The reversal of 4081911 is 1191804.

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 4081911 - 2¹⁴ = 4065527 is a prime.

It is a D-number.

4081911 is a lucky number.

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4081991) 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, 680316 + ... + 680321.

It is an arithmetic number, because the mean of its divisors is an integer number (1360638).

Almost surely, 2^4081911 is an apocalyptic number.

4081911 is a deficient number, since it is larger than the sum of its proper divisors (1360641).

4081911 is a wasteful number, since it uses less digits than its factorization.

4081911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1360640.

The product of its (nonzero) digits is 288, while the sum is 24.

The square root of 4081911 is about 2020.3739752828. The cubic root of 4081911 is about 159.8163387382.

The spelling of 4081911 in words is "four million, eighty-one thousand, nine hundred eleven".