487291889 has 8 divisors (see below), whose sum is σ = 557246400. Its totient is φ = 417422736.

The previous prime is 487291873. The next prime is 487291919. The reversal of 487291889 is 988192784.

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 487291889 - 2⁴ = 487291873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (487291289) 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, 8594 + ... + 32379.

It is an arithmetic number, because the mean of its divisors is an integer number (69655800).

Almost surely, 2^487291889 is an apocalyptic number.

It is an amenable number.

487291889 is a deficient number, since it is larger than the sum of its proper divisors (69954511).

487291889 is a wasteful number, since it uses less digits than its factorization.

487291889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42679.

The product of its digits is 2322432, while the sum is 56.

The square root of 487291889 is about 22074.6888766297. The cubic root of 487291889 is about 786.9184494212.

The spelling of 487291889 in words is "four hundred eighty-seven million, two hundred ninety-one thousand, eight hundred eighty-nine".