9725280393 has 8 divisors (see below), whose sum is σ = 12977528128. Its totient is φ = 6478276464.

The previous prime is 9725280361. The next prime is 9725280407. The reversal of 9725280393 is 3930825279.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9725280393 - 2⁵ = 9725280361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9725280353) 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 in 7 ways as a sum of consecutive naturals, for example, 1306621 + ... + 1314042.

It is an arithmetic number, because the mean of its divisors is an integer number (1622191016).

Almost surely, 2^9725280393 is an apocalyptic number.

It is an amenable number.

9725280393 is a deficient number, since it is larger than the sum of its proper divisors (3252247735).

9725280393 is a wasteful number, since it uses less digits than its factorization.

9725280393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2621903.

The product of its (nonzero) digits is 816480, while the sum is 48.

The square root of 9725280393 is about 98616.8362552764. The cubic root of 9725280393 is about 2134.5223694113.

The spelling of 9725280393 in words is "nine billion, seven hundred twenty-five million, two hundred eighty thousand, three hundred ninety-three".