9913445 has 8 divisors (see below), whose sum is σ = 11958936. Its totient is φ = 7888896.

The previous prime is 9913439. The next prime is 9913469. The reversal of 9913445 is 5443199.

It can be written as a sum of positive squares in 4 ways, for example, as 16129 + 9897316 = 127^2 + 3146^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 9913445 - 2⁴ = 9913429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 4172 + ... + 6101.

It is an arithmetic number, because the mean of its divisors is an integer number (1494867).

Almost surely, 2^9913445 is an apocalyptic number.

It is an amenable number.

9913445 is a deficient number, since it is larger than the sum of its proper divisors (2045491).

9913445 is a wasteful number, since it uses less digits than its factorization.

9913445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10471.

The product of its digits is 19440, while the sum is 35.

The square root of 9913445 is about 3148.5623703525. The cubic root of 9913445 is about 214.8200766224.

The spelling of 9913445 in words is "nine million, nine hundred thirteen thousand, four hundred forty-five".