487247321 has 32 divisors (see below), whose sum is σ = 562464000. Its totient is φ = 418176000.

The previous prime is 487247309. The next prime is 487247323. The reversal of 487247321 is 123742784.

It is a de Polignac number, because none of the positive numbers 2^k-487247321 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (487247323) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2448380 + ... + 2448578.

It is an arithmetic number, because the mean of its divisors is an integer number (17577000).

Almost surely, 2^487247321 is an apocalyptic number.

487247321 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

487247321 is a deficient number, since it is larger than the sum of its proper divisors (75216679).

487247321 is a wasteful number, since it uses less digits than its factorization.

487247321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401.

The product of its digits is 75264, while the sum is 38.

The square root of 487247321 is about 22073.6793715955. The cubic root of 487247321 is about 786.8944580165.

The spelling of 487247321 in words is "four hundred eighty-seven million, two hundred forty-seven thousand, three hundred twenty-one".