9975305 has 4 divisors (see below), whose sum is σ = 11970372. Its totient is φ = 7980240.

The previous prime is 9975299. The next prime is 9975319. The reversal of 9975305 is 5035799.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5035799 = 1549 ⋅3251.

It can be written as a sum of positive squares in 2 ways, for example, as 7166329 + 2808976 = 2677^2 + 1676^2 .

It is not a de Polignac number, because 9975305 - 2¹² = 9971209 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 997526 + ... + 997535.

It is an arithmetic number, because the mean of its divisors is an integer number (2992593).

Almost surely, 2^9975305 is an apocalyptic number.

It is an amenable number.

9975305 is a deficient number, since it is larger than the sum of its proper divisors (1995067).

9975305 is a wasteful number, since it uses less digits than its factorization.

9975305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1995066.

The product of its (nonzero) digits is 42525, while the sum is 38.

The square root of 9975305 is about 3158.3706242302. The cubic root of 9975305 is about 215.2659769351.

The spelling of 9975305 in words is "nine million, nine hundred seventy-five thousand, three hundred five".