2357321 has 2 divisors, whose sum is σ = 2357322. Its totient is φ = 2357320.

The previous prime is 2357297. The next prime is 2357347. The reversal of 2357321 is 1237532.

2357321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1428025 + 929296 = 1195^2 + 964^2 .

It is a cyclic number.

It is not a de Polignac number, because 2357321 - 2¹⁴ = 2340937 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2357351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1178660 + 1178661.

It is an arithmetic number, because the mean of its divisors is an integer number (1178661).

2^2357321 is an apocalyptic number.

It is an amenable number.

2357321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2357321 is an equidigital number, since it uses as much as digits as its factorization.

2357321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1260, while the sum is 23.

The square root of 2357321 is about 1535.3569617519. The cubic root of 2357321 is about 133.0882072641.

The spelling of 2357321 in words is "two million, three hundred fifty-seven thousand, three hundred twenty-one".