3889657 has 2 divisors, whose sum is σ = 3889658. Its totient is φ = 3889656.

The previous prime is 3889649. The next prime is 3889667. The reversal of 3889657 is 7569883.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2202256 + 1687401 = 1484^2 + 1299^2 .

It is a cyclic number.

It is not a de Polignac number, because 3889657 - 2³ = 3889649 is a prime.

It is not a weakly prime, because it can be changed into another prime (3889607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1944828 + 1944829.

It is an arithmetic number, because the mean of its divisors is an integer number (1944829).

Almost surely, 2^3889657 is an apocalyptic number.

It is an amenable number.

3889657 is a deficient number, since it is larger than the sum of its proper divisors (1).

3889657 is an equidigital number, since it uses as much as digits as its factorization.

3889657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 46.

The square root of 3889657 is about 1972.2213364630. The cubic root of 3889657 is about 157.2668187952.

The spelling of 3889657 in words is "three million, eight hundred eighty-nine thousand, six hundred fifty-seven".