9965845 has 8 divisors (see below), whose sum is σ = 12002976. Its totient is φ = 7943376.

The previous prime is 9965843. The next prime is 9965863. The reversal of 9965845 is 5485699.

9965845 = T₁₁₁ + T₁₁₂ + ... + T₃₉₃.

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 9965845 - 2¹ = 9965843 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9965795 and 9965804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9965843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2107 + ... + 4936.

It is an arithmetic number, because the mean of its divisors is an integer number (1500372).

Almost surely, 2^9965845 is an apocalyptic number.

It is an amenable number.

9965845 is a deficient number, since it is larger than the sum of its proper divisors (2037131).

9965845 is a wasteful number, since it uses less digits than its factorization.

9965845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7331.

The product of its digits is 388800, while the sum is 46.

The square root of 9965845 is about 3156.8726613533. The cubic root of 9965845 is about 215.1979068286.

The spelling of 9965845 in words is "nine million, nine hundred sixty-five thousand, eight hundred forty-five".