4391011 has 2 divisors, whose sum is σ = 4391012. Its totient is φ = 4391010.

The previous prime is 4391003. The next prime is 4391017. The reversal of 4391011 is 1101934.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4391011 - 2³ = 4391003 is a prime.

It is a nialpdrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 4391011.

It is not a weakly prime, because it can be changed into another prime (4391017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2195505 + 2195506.

It is an arithmetic number, because the mean of its divisors is an integer number (2195506).

Almost surely, 2^4391011 is an apocalyptic number.

4391011 is a deficient number, since it is larger than the sum of its proper divisors (1).

4391011 is an equidigital number, since it uses as much as digits as its factorization.

4391011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 4391011 is about 2095.4739320736. The cubic root of 4391011 is about 163.7525889690.

Adding to 4391011 its reverse (1101934), we get a palindrome (5492945).

The spelling of 4391011 in words is "four million, three hundred ninety-one thousand, eleven".