487871961 has 8 divisors (see below), whose sum is σ = 661160064. Its totient is φ = 319915920.

The previous prime is 487871941. The next prime is 487871981. The reversal of 487871961 is 169178784.

It is an interprime number because it is at equal distance from previous prime (487871941) and next prime (487871981).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 487871961 - 2¹⁹ = 487347673 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (487871941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1332801 + ... + 1333166.

It is an arithmetic number, because the mean of its divisors is an integer number (82645008).

Almost surely, 2^487871961 is an apocalyptic number.

It is an amenable number.

487871961 is a deficient number, since it is larger than the sum of its proper divisors (173288103).

487871961 is a wasteful number, since it uses less digits than its factorization.

487871961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2666031.

The product of its digits is 677376, while the sum is 51.

The square root of 487871961 is about 22087.8238176603. The cubic root of 487871961 is about 787.2305747010.

The spelling of 487871961 in words is "four hundred eighty-seven million, eight hundred seventy-one thousand, nine hundred sixty-one".