487519321 has 4 divisors (see below), whose sum is σ = 488131812. Its totient is φ = 486906832.

The previous prime is 487519303. The next prime is 487519369. The reversal of 487519321 is 123915784.

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 407595721 + 79923600 = 20189^2 + 8940^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-487519321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (487519121) 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, 305050 + ... + 306643.

It is an arithmetic number, because the mean of its divisors is an integer number (122032953).

Almost surely, 2^487519321 is an apocalyptic number.

It is an amenable number.

487519321 is a deficient number, since it is larger than the sum of its proper divisors (612491).

487519321 is an equidigital number, since it uses as much as digits as its factorization.

487519321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612490.

The product of its digits is 60480, while the sum is 40.

The square root of 487519321 is about 22079.8396959761. The cubic root of 487519321 is about 787.0408555907.

The spelling of 487519321 in words is "four hundred eighty-seven million, five hundred nineteen thousand, three hundred twenty-one".