9967445 has 16 divisors (see below), whose sum is σ = 12616560. Its totient is φ = 7547904.

The previous prime is 9967439. The next prime is 9967453. The reversal of 9967445 is 5447699.

It can be written as a sum of positive squares in 8 ways, for example, as 1661521 + 8305924 = 1289^2 + 2882^2 .

It is a cyclic number.

It is not a de Polignac number, because 9967445 - 2⁸ = 9967189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9967396 and 9967405.

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 15 ways as a sum of consecutive naturals, for example, 7037 + ... + 8333.

It is an arithmetic number, because the mean of its divisors is an integer number (788535).

Almost surely, 2^9967445 is an apocalyptic number.

It is an amenable number.

9967445 is a deficient number, since it is larger than the sum of its proper divisors (2649115).

9967445 is a wasteful number, since it uses less digits than its factorization.

9967445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1384.

The product of its digits is 272160, while the sum is 44.

The square root of 9967445 is about 3157.1260665358. The cubic root of 9967445 is about 215.2094227689.

The spelling of 9967445 in words is "nine million, nine hundred sixty-seven thousand, four hundred forty-five".