487878851 has 2 divisors, whose sum is σ = 487878852. Its totient is φ = 487878850.

The previous prime is 487878841. The next prime is 487878883. The reversal of 487878851 is 158878784.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 487878851 - 2¹⁴ = 487862467 is a prime.

It is not a weakly prime, because it can be changed into another prime (487878821) 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, 243939425 + 243939426.

It is an arithmetic number, because the mean of its divisors is an integer number (243939426).

Almost surely, 2^487878851 is an apocalyptic number.

487878851 is a deficient number, since it is larger than the sum of its proper divisors (1).

487878851 is an equidigital number, since it uses as much as digits as its factorization.

487878851 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4014080, while the sum is 56.

The square root of 487878851 is about 22087.9797853946. The cubic root of 487878851 is about 787.2342805866.

The spelling of 487878851 in words is "four hundred eighty-seven million, eight hundred seventy-eight thousand, eight hundred fifty-one".