487881117 has 8 divisors (see below), whose sum is σ = 722786880. Its totient is φ = 325254060.

The previous prime is 487881109. The next prime is 487881133. The reversal of 487881117 is 711188784.

It is not a de Polignac number, because 487881117 - 2³ = 487881109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (487881137) 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, 9034809 + ... + 9034862.

It is an arithmetic number, because the mean of its divisors is an integer number (90348360).

Almost surely, 2^487881117 is an apocalyptic number.

It is an amenable number.

487881117 is a deficient number, since it is larger than the sum of its proper divisors (234905763).

487881117 is a wasteful number, since it uses less digits than its factorization.

487881117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18069680 (or 18069674 counting only the distinct ones).

The product of its digits is 100352, while the sum is 45.

The square root of 487881117 is about 22088.0310802027. The cubic root of 487881117 is about 787.2354993797.

The spelling of 487881117 in words is "four hundred eighty-seven million, eight hundred eighty-one thousand, one hundred seventeen".