487719913 has 2 divisors, whose sum is σ = 487719914. Its totient is φ = 487719912.

The previous prime is 487719877. The next prime is 487719917. The reversal of 487719913 is 319917784.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 474673369 + 13046544 = 21787^2 + 3612^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-487719913 is a prime.

It is not a weakly prime, because it can be changed into another prime (487719917) 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, 243859956 + 243859957.

It is an arithmetic number, because the mean of its divisors is an integer number (243859957).

Almost surely, 2^487719913 is an apocalyptic number.

It is an amenable number.

487719913 is a deficient number, since it is larger than the sum of its proper divisors (1).

487719913 is an equidigital number, since it uses as much as digits as its factorization.

487719913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 381024, while the sum is 49.

The square root of 487719913 is about 22084.3816531050. The cubic root of 487719913 is about 787.1487846134.

The spelling of 487719913 in words is "four hundred eighty-seven million, seven hundred nineteen thousand, nine hundred thirteen".