9934945 has 4 divisors (see below), whose sum is σ = 11921940. Its totient is φ = 7947952.

The previous prime is 9934943. The next prime is 9934963. The reversal of 9934945 is 5494399.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5494399 = 113 ⋅48623.

It can be written as a sum of positive squares in 2 ways, for example, as 4809249 + 5125696 = 2193^2 + 2264^2 .

It is a cyclic number.

It is not a de Polignac number, because 9934945 - 2¹ = 9934943 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9934943) 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 3 ways as a sum of consecutive naturals, for example, 993490 + ... + 993499.

It is an arithmetic number, because the mean of its divisors is an integer number (2980485).

Almost surely, 2^9934945 is an apocalyptic number.

It is an amenable number.

9934945 is a deficient number, since it is larger than the sum of its proper divisors (1986995).

9934945 is a wasteful number, since it uses less digits than its factorization.

9934945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1986994.

The product of its digits is 174960, while the sum is 43.

The square root of 9934945 is about 3151.9747778179. The cubic root of 9934945 is about 214.9752630635.

The spelling of 9934945 in words is "nine million, nine hundred thirty-four thousand, nine hundred forty-five".