10021747 has 2 divisors, whose sum is σ = 10021748. Its totient is φ = 10021746.

The previous prime is 10021741. The next prime is 10021769. The reversal of 10021747 is 74712001.

10021747 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (10021769) can be obtained adding 10021747 to its sum of digits (22).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10021747 is a prime.

It is not a weakly prime, because it can be changed into another prime (10021741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5010873 + 5010874.

It is an arithmetic number, because the mean of its divisors is an integer number (5010874).

Almost surely, 2^10021747 is an apocalyptic number.

10021747 is a deficient number, since it is larger than the sum of its proper divisors (1).

10021747 is an equidigital number, since it uses as much as digits as its factorization.

10021747 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 392, while the sum is 22.

The square root of 10021747 is about 3165.7142953842. The cubic root of 10021747 is about 215.5995308992.

Adding to 10021747 its reverse (74712001), we get a palindrome (84733748).

The spelling of 10021747 in words is "ten million, twenty-one thousand, seven hundred forty-seven".