489696787 has 2 divisors, whose sum is σ = 489696788. Its totient is φ = 489696786.

The previous prime is 489696731. The next prime is 489696793. The reversal of 489696787 is 787696984.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-489696787 is a prime.

It is not a weakly prime, because it can be changed into another prime (489696707) 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, 244848393 + 244848394.

It is an arithmetic number, because the mean of its divisors is an integer number (244848394).

Almost surely, 2^489696787 is an apocalyptic number.

489696787 is a deficient number, since it is larger than the sum of its proper divisors (1).

489696787 is an equidigital number, since it uses as much as digits as its factorization.

489696787 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36578304, while the sum is 64.

The square root of 489696787 is about 22129.0936777808. The cubic root of 489696787 is about 788.2108670431.

The spelling of 489696787 in words is "four hundred eighty-nine million, six hundred ninety-six thousand, seven hundred eighty-seven".