4091013 has 16 divisors (see below), whose sum is σ = 6093760. Its totient is φ = 2712528.

The previous prime is 4091011. The next prime is 4091047. The reversal of 4091013 is 3101904.

It is not a de Polignac number, because 4091013 - 2¹ = 4091011 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 (4091011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7206 + ... + 7752.

It is an arithmetic number, because the mean of its divisors is an integer number (380860).

Almost surely, 2^4091013 is an apocalyptic number.

It is an amenable number.

4091013 is a deficient number, since it is larger than the sum of its proper divisors (2002747).

4091013 is a wasteful number, since it uses less digits than its factorization.

4091013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 833 (or 827 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 4091013 is about 2022.6252742414. The cubic root of 4091013 is about 159.9350387329.

Adding to 4091013 its reverse (3101904), we get a palindrome (7192917).

The spelling of 4091013 in words is "four million, ninety-one thousand, thirteen".