487871999 has 4 divisors (see below), whose sum is σ = 488010864. Its totient is φ = 487733136.

The previous prime is 487871983. The next prime is 487872013. The reversal of 487871999 is 999178784.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 487871999 - 2⁴ = 487871983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (487871939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64022 + ... + 71235.

It is an arithmetic number, because the mean of its divisors is an integer number (122002716).

Almost surely, 2^487871999 is an apocalyptic number.

487871999 is a deficient number, since it is larger than the sum of its proper divisors (138865).

487871999 is a wasteful number, since it uses less digits than its factorization.

487871999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138864.

The product of its digits is 9144576, while the sum is 62.

The square root of 487871999 is about 22087.8246778627. The cubic root of 487871999 is about 787.2305951399.

The spelling of 487871999 in words is "four hundred eighty-seven million, eight hundred seventy-one thousand, nine hundred ninety-nine".