9381965 has 8 divisors (see below), whose sum is σ = 11280408. Its totient is φ = 7490880.

The previous prime is 9381949. The next prime is 9381997. The reversal of 9381965 is 5691839.

It can be written as a sum of positive squares in 4 ways, for example, as 537289 + 8844676 = 733^2 + 2974^2 .

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

It is not a de Polignac number, because 9381965 - 2⁴ = 9381949 is a prime.

It is a super-2 number, since 2×9381965² = 176042534522450, which contains 22 as substring.

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, 1535 + ... + 4595.

It is an arithmetic number, because the mean of its divisors is an integer number (1410051).

Almost surely, 2^9381965 is an apocalyptic number.

It is an amenable number.

9381965 is a deficient number, since it is larger than the sum of its proper divisors (1898443).

9381965 is a wasteful number, since it uses less digits than its factorization.

9381965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3679.

The product of its digits is 58320, while the sum is 41.

The square root of 9381965 is about 3062.9993470453. Note that the first 3 decimals coincide. The cubic root of 9381965 is about 210.9103712528.

The spelling of 9381965 in words is "nine million, three hundred eighty-one thousand, nine hundred sixty-five".