9730621444 has 6 divisors (see below), whose sum is σ = 17028587534. Its totient is φ = 4865310720.

The previous prime is 9730621429. The next prime is 9730621447. The reversal of 9730621444 is 4441260379.

It can be written as a sum of positive squares in only one way, i.e., 9729455044 + 1166400 = 98638^2 + 1080^2 .

It is a junction number, because it is equal to n+sod(n) for n = 9730621397 and 9730621406.

It is not an unprimeable number, because it can be changed into a prime (9730621447) 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, 1216327677 + ... + 1216327684.

Almost surely, 2^9730621444 is an apocalyptic number.

It is an amenable number.

9730621444 is a deficient number, since it is larger than the sum of its proper divisors (7297966090).

9730621444 is a wasteful number, since it uses less digits than its factorization.

9730621444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2432655365 (or 2432655363 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 40.

The square root of 9730621444 is about 98643.9123514472. The cubic root of 9730621444 is about 2134.9130524550.

The spelling of 9730621444 in words is "nine billion, seven hundred thirty million, six hundred twenty-one thousand, four hundred forty-four".