10821347 has 2 divisors, whose sum is σ = 10821348. Its totient is φ = 10821346.

The previous prime is 10821331. The next prime is 10821359. The reversal of 10821347 is 74312801.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10821347 - 2⁴ = 10821331 is a prime.

It is not a weakly prime, because it can be changed into another prime (10821397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5410673 + 5410674.

It is an arithmetic number, because the mean of its divisors is an integer number (5410674).

Almost surely, 2^10821347 is an apocalyptic number.

10821347 is a deficient number, since it is larger than the sum of its proper divisors (1).

10821347 is an equidigital number, since it uses as much as digits as its factorization.

10821347 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 10821347 is about 3289.5815843356. The cubic root of 10821347 is about 221.1874292937.

The spelling of 10821347 in words is "ten million, eight hundred twenty-one thousand, three hundred forty-seven".