487111681 has 8 divisors (see below), whose sum is σ = 558514880. Its totient is φ = 416162448.

The previous prime is 487111679. The next prime is 487111747. The reversal of 487111681 is 186111784.

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

It is a cyclic number.

It is not a de Polignac number, because 487111681 - 2¹ = 487111679 is a prime.

It is a super-2 number, since 2×487111681² = 474555579533291522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 487111681.

It is not an unprimeable number, because it can be changed into a prime (487111601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111186 + ... + 115483.

It is an arithmetic number, because the mean of its divisors is an integer number (69814360).

Almost surely, 2^487111681 is an apocalyptic number.

It is an amenable number.

487111681 is a deficient number, since it is larger than the sum of its proper divisors (71403199).

487111681 is a wasteful number, since it uses less digits than its factorization.

487111681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226983.

The product of its digits is 10752, while the sum is 37.

The square root of 487111681 is about 22070.6067202513. The cubic root of 487111681 is about 786.8214326312.

The spelling of 487111681 in words is "four hundred eighty-seven million, one hundred eleven thousand, six hundred eighty-one".