9749333021 has 2 divisors, whose sum is σ = 9749333022. Its totient is φ = 9749333020.

The previous prime is 9749332997. The next prime is 9749333059. The reversal of 9749333021 is 1203339479.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9450561796 + 298771225 = 97214^2 + 17285^2 .

It is a cyclic number.

It is not a de Polignac number, because 9749333021 - 2²² = 9745138717 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9749333021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9749330021) 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, 4874666510 + 4874666511.

It is an arithmetic number, because the mean of its divisors is an integer number (4874666511).

Almost surely, 2^9749333021 is an apocalyptic number.

It is an amenable number.

9749333021 is a deficient number, since it is larger than the sum of its proper divisors (1).

9749333021 is an equidigital number, since it uses as much as digits as its factorization.

9749333021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 122472, while the sum is 41.

The square root of 9749333021 is about 98738.7108534439. The cubic root of 9749333021 is about 2136.2806256592.

The spelling of 9749333021 in words is "nine billion, seven hundred forty-nine million, three hundred thirty-three thousand, twenty-one".