4878889 has 2 divisors, whose sum is σ = 4878890. Its totient is φ = 4878888.

The previous prime is 4878871. The next prime is 4878893. The reversal of 4878889 is 9888784.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2941225 + 1937664 = 1715^2 + 1392^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4878889 is a prime.

It is not a weakly prime, because it can be changed into another prime (4878869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2439444 + 2439445.

It is an arithmetic number, because the mean of its divisors is an integer number (2439445).

Almost surely, 2^4878889 is an apocalyptic number.

It is an amenable number.

4878889 is a deficient number, since it is larger than the sum of its proper divisors (1).

4878889 is an equidigital number, since it uses as much as digits as its factorization.

4878889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1032192, while the sum is 52.

The square root of 4878889 is about 2208.8207260889. The cubic root of 4878889 is about 169.6056487861.

The spelling of 4878889 in words is "four million, eight hundred seventy-eight thousand, eight hundred eighty-nine".