487886779 has 2 divisors, whose sum is σ = 487886780. Its totient is φ = 487886778.

The previous prime is 487886761. The next prime is 487886849. The reversal of 487886779 is 977688784.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 487886779 - 2¹⁵ = 487854011 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 487886779.

It is not a weakly prime, because it can be changed into another prime (487883779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243943389 + 243943390.

It is an arithmetic number, because the mean of its divisors is an integer number (243943390).

Almost surely, 2^487886779 is an apocalyptic number.

487886779 is a deficient number, since it is larger than the sum of its proper divisors (1).

487886779 is an equidigital number, since it uses as much as digits as its factorization.

487886779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37933056, while the sum is 64.

The square root of 487886779 is about 22088.1592487921. The cubic root of 487886779 is about 787.2385447324.

The spelling of 487886779 in words is "four hundred eighty-seven million, eight hundred eighty-six thousand, seven hundred seventy-nine".