487165817 has 4 divisors (see below), whose sum is σ = 487213200. Its totient is φ = 487118436.

The previous prime is 487165807. The next prime is 487165823. The reversal of 487165817 is 718561784.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 487165817 - 2¹⁰ = 487164793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (487165807) 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, 1067 + ... + 31232.

It is an arithmetic number, because the mean of its divisors is an integer number (121803300).

Almost surely, 2^487165817 is an apocalyptic number.

It is an amenable number.

487165817 is a deficient number, since it is larger than the sum of its proper divisors (47383).

487165817 is a wasteful number, since it uses less digits than its factorization.

487165817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47382.

The product of its digits is 376320, while the sum is 47.

The square root of 487165817 is about 22071.8331137221. The cubic root of 487165817 is about 786.8505798055.

The spelling of 487165817 in words is "four hundred eighty-seven million, one hundred sixty-five thousand, eight hundred seventeen".