3711989 has 2 divisors, whose sum is σ = 3711990. Its totient is φ = 3711988.

The previous prime is 3711959. The next prime is 3712019. The reversal of 3711989 is 9891173.

It is a balanced prime because it is at equal distance from previous prime (3711959) and next prime (3712019).

It can be written as a sum of positive squares in only one way, i.e., 3179089 + 532900 = 1783^2 + 730^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3711989 is a prime.

It is a super-2 number, since 2×3711989² = 27557724672242, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3711959) 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, 1855994 + 1855995.

It is an arithmetic number, because the mean of its divisors is an integer number (1855995).

Almost surely, 2^3711989 is an apocalyptic number.

It is an amenable number.

3711989 is a deficient number, since it is larger than the sum of its proper divisors (1).

3711989 is an equidigital number, since it uses as much as digits as its factorization.

3711989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13608, while the sum is 38.

The square root of 3711989 is about 1926.6522779163. The cubic root of 3711989 is about 154.8349126808.

The spelling of 3711989 in words is "three million, seven hundred eleven thousand, nine hundred eighty-nine".