487232321 has 2 divisors, whose sum is σ = 487232322. Its totient is φ = 487232320.

The previous prime is 487232303. The next prime is 487232323. The reversal of 487232321 is 123232784.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 292239025 + 194993296 = 17095^2 + 13964^2 .

It is a cyclic number.

It is not a de Polignac number, because 487232321 - 2¹⁸ = 486970177 is a prime.

Together with 487232323, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (487232323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243616160 + 243616161.

It is an arithmetic number, because the mean of its divisors is an integer number (243616161).

Almost surely, 2^487232321 is an apocalyptic number.

It is an amenable number.

487232321 is a deficient number, since it is larger than the sum of its proper divisors (1).

487232321 is an equidigital number, since it uses as much as digits as its factorization.

487232321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 32.

The square root of 487232321 is about 22073.3395978044. The cubic root of 487232321 is about 786.8863830359.

The spelling of 487232321 in words is "four hundred eighty-seven million, two hundred thirty-two thousand, three hundred twenty-one".