3858889 has 2 divisors, whose sum is σ = 3858890. Its totient is φ = 3858888.

The previous prime is 3858859. The next prime is 3858901. The reversal of 3858889 is 9888583.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3822025 + 36864 = 1955^2 + 192^2 .

It is a cyclic number.

It is not a de Polignac number, because 3858889 - 2⁷ = 3858761 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (3858839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1929444 + 1929445.

It is an arithmetic number, because the mean of its divisors is an integer number (1929445).

Almost surely, 2^3858889 is an apocalyptic number.

It is an amenable number.

3858889 is a deficient number, since it is larger than the sum of its proper divisors (1).

3858889 is an equidigital number, since it uses as much as digits as its factorization.

3858889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 552960, while the sum is 49.

The square root of 3858889 is about 1964.4055080354. The cubic root of 3858889 is about 156.8510494486.

The spelling of 3858889 in words is "three million, eight hundred fifty-eight thousand, eight hundred eighty-nine".