487971019 has 2 divisors, whose sum is σ = 487971020. Its totient is φ = 487971018.

The previous prime is 487971017. The next prime is 487971041. The reversal of 487971019 is 910179784.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 487971019 - 2¹ = 487971017 is a prime.

It is a super-2 number, since 2×487971019² = 476231430767796722, which contains 22 as substring.

Together with 487971017, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 487971019.

It is not a weakly prime, because it can be changed into another prime (487971017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243985509 + 243985510.

It is an arithmetic number, because the mean of its divisors is an integer number (243985510).

Almost surely, 2^487971019 is an apocalyptic number.

487971019 is a deficient number, since it is larger than the sum of its proper divisors (1).

487971019 is an equidigital number, since it uses as much as digits as its factorization.

487971019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 127008, while the sum is 46.

The square root of 487971019 is about 22090.0660705214. The cubic root of 487971019 is about 787.2838511173.

The spelling of 487971019 in words is "four hundred eighty-seven million, nine hundred seventy-one thousand, nineteen".