3989371 has 2 divisors, whose sum is σ = 3989372. Its totient is φ = 3989370.

The previous prime is 3989351. The next prime is 3989383. The reversal of 3989371 is 1739893.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3989371 - 2⁷ = 3989243 is a prime.

3989371 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (3989311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1994685 + 1994686.

It is an arithmetic number, because the mean of its divisors is an integer number (1994686).

Almost surely, 2^3989371 is an apocalyptic number.

3989371 is a deficient number, since it is larger than the sum of its proper divisors (1).

3989371 is an equidigital number, since it uses as much as digits as its factorization.

3989371 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40824, while the sum is 40.

The square root of 3989371 is about 1997.3409824064. The cubic root of 3989371 is about 158.5993764244.

The spelling of 3989371 in words is "three million, nine hundred eighty-nine thousand, three hundred seventy-one".