487818321 has 4 divisors (see below), whose sum is σ = 650424432. Its totient is φ = 325212212.

The previous prime is 487818301. The next prime is 487818361. The reversal of 487818321 is 123818784.

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.

It is a cyclic number.

It is not a de Polignac number, because 487818321 - 2⁶ = 487818257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (487818301) 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, 81303051 + ... + 81303056.

It is an arithmetic number, because the mean of its divisors is an integer number (162606108).

Almost surely, 2^487818321 is an apocalyptic number.

It is an amenable number.

487818321 is a deficient number, since it is larger than the sum of its proper divisors (162606111).

487818321 is a wasteful number, since it uses less digits than its factorization.

487818321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162606110.

The product of its digits is 86016, while the sum is 42.

The square root of 487818321 is about 22086.6095406244. The cubic root of 487818321 is about 787.2017224617.

The spelling of 487818321 in words is "four hundred eighty-seven million, eight hundred eighteen thousand, three hundred twenty-one".