3591949 has 2 divisors, whose sum is σ = 3591950. Its totient is φ = 3591948.

The previous prime is 3591871. The next prime is 3591953. The reversal of 3591949 is 9491953.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3348900 + 243049 = 1830^2 + 493^2 .

It is a cyclic number.

It is not a de Polignac number, because 3591949 - 2¹³ = 3583757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3591989) by changing a digit.

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 as a sum of consecutive naturals, namely, 1795974 + 1795975.

It is an arithmetic number, because the mean of its divisors is an integer number (1795975).

Almost surely, 2^3591949 is an apocalyptic number.

It is an amenable number.

3591949 is a deficient number, since it is larger than the sum of its proper divisors (1).

3591949 is an equidigital number, since it uses as much as digits as its factorization.

3591949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43740, while the sum is 40.

The square root of 3591949 is about 1895.2437837914. The cubic root of 3591949 is about 153.1475501428.

The spelling of 3591949 in words is "three million, five hundred ninety-one thousand, nine hundred forty-nine".