488779987 has 2 divisors, whose sum is σ = 488779988. Its totient is φ = 488779986.

The previous prime is 488779979. The next prime is 488779999. The reversal of 488779987 is 789977884.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 488779987 - 2³ = 488779979 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (480779987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244389993 + 244389994.

It is an arithmetic number, because the mean of its divisors is an integer number (244389994).

Almost surely, 2^488779987 is an apocalyptic number.

488779987 is a deficient number, since it is larger than the sum of its proper divisors (1).

488779987 is an equidigital number, since it uses as much as digits as its factorization.

488779987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56899584, while the sum is 67.

The square root of 488779987 is about 22108.3691619260. The cubic root of 488779987 is about 787.7186691654.

The spelling of 488779987 in words is "four hundred eighty-eight million, seven hundred seventy-nine thousand, nine hundred eighty-seven".