487218965 has 4 divisors (see below), whose sum is σ = 584662764. Its totient is φ = 389775168.

The previous prime is 487218911. The next prime is 487219003. The reversal of 487218965 is 569812784.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 95218564 + 392000401 = 9758^2 + 19799^2 .

It is a cyclic number.

It is not a de Polignac number, because 487218965 - 2⁸ = 487218709 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48721892 + ... + 48721901.

It is an arithmetic number, because the mean of its divisors is an integer number (146165691).

Almost surely, 2^487218965 is an apocalyptic number.

It is an amenable number.

487218965 is a deficient number, since it is larger than the sum of its proper divisors (97443799).

487218965 is an equidigital number, since it uses as much as digits as its factorization.

487218965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97443798.

The product of its digits is 967680, while the sum is 50.

The square root of 487218965 is about 22073.0370588191. The cubic root of 487218965 is about 786.8791929337.

The spelling of 487218965 in words is "four hundred eighty-seven million, two hundred eighteen thousand, nine hundred sixty-five".