3581911 has 2 divisors, whose sum is σ = 3581912. Its totient is φ = 3581910.

The previous prime is 3581881. The next prime is 3581923. The reversal of 3581911 is 1191853.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3581911 is a prime.

It is a super-4 number, since 4×3581911⁴ (a number of 27 digits) contains 4444 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3581911.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3581971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1790955 + 1790956.

It is an arithmetic number, because the mean of its divisors is an integer number (1790956).

Almost surely, 2^3581911 is an apocalyptic number.

3581911 is a deficient number, since it is larger than the sum of its proper divisors (1).

3581911 is an equidigital number, since it uses as much as digits as its factorization.

3581911 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1080, while the sum is 28.

The square root of 3581911 is about 1892.5937229104. The cubic root of 3581911 is about 153.0047558577.

The spelling of 3581911 in words is "three million, five hundred eighty-one thousand, nine hundred eleven".