4687321 has 2 divisors, whose sum is σ = 4687322. Its totient is φ = 4687320.

The previous prime is 4687313. The next prime is 4687337. The reversal of 4687321 is 1237864.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2544025 + 2143296 = 1595^2 + 1464^2 .

It is a cyclic number.

It is not a de Polignac number, because 4687321 - 2³ = 4687313 is a prime.

It is not a weakly prime, because it can be changed into another prime (4687351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2343660 + 2343661.

It is an arithmetic number, because the mean of its divisors is an integer number (2343661).

Almost surely, 2^4687321 is an apocalyptic number.

It is an amenable number.

4687321 is a deficient number, since it is larger than the sum of its proper divisors (1).

4687321 is an equidigital number, since it uses as much as digits as its factorization.

4687321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 31.

The square root of 4687321 is about 2165.0221707872. The cubic root of 4687321 is about 167.3561072090.

The spelling of 4687321 in words is "four million, six hundred eighty-seven thousand, three hundred twenty-one".