488888857 has 2 divisors, whose sum is σ = 488888858. Its totient is φ = 488888856.

The previous prime is 488888849. The next prime is 488888909. The reversal of 488888857 is 758888884.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 353026521 + 135862336 = 18789^2 + 11656^2 .

It is a cyclic number.

It is not a de Polignac number, because 488888857 - 2³ = 488888849 is a prime.

It is not a weakly prime, because it can be changed into another prime (488886857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244444428 + 244444429.

It is an arithmetic number, because the mean of its divisors is an integer number (244444429).

Almost surely, 2^488888857 is an apocalyptic number.

It is an amenable number.

488888857 is a deficient number, since it is larger than the sum of its proper divisors (1).

488888857 is an equidigital number, since it uses as much as digits as its factorization.

488888857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36700160, while the sum is 64.

The square root of 488888857 is about 22110.8312145880. The cubic root of 488888857 is about 787.7771498501. Note that the first 3 decimals are identical.

The spelling of 488888857 in words is "four hundred eighty-eight million, eight hundred eighty-eight thousand, eight hundred fifty-seven".