8748889 has 2 divisors, whose sum is σ = 8748890. Its totient is φ = 8748888.

The previous prime is 8748881. The next prime is 8748893. The reversal of 8748889 is 9888478.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4410000 + 4338889 = 2100^2 + 2083^2 .

It is a cyclic number.

It is not a de Polignac number, because 8748889 - 2³ = 8748881 is a prime.

8748889 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (8748881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4374444 + 4374445.

It is an arithmetic number, because the mean of its divisors is an integer number (4374445).

Almost surely, 2^8748889 is an apocalyptic number.

It is an amenable number.

8748889 is a deficient number, since it is larger than the sum of its proper divisors (1).

8748889 is an equidigital number, since it uses as much as digits as its factorization.

8748889 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 8748889 is about 2957.8520923129. The cubic root of 8748889 is about 206.0555431966.

The spelling of 8748889 in words is "eight million, seven hundred forty-eight thousand, eight hundred eighty-nine".