9965393 has 4 divisors (see below), whose sum is σ = 10009140. Its totient is φ = 9921648.

The previous prime is 9965381. The next prime is 9965399. The reversal of 9965393 is 3935699.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3775249 + 6190144 = 1943^2 + 2488^2 .

It is a cyclic number.

It is not a de Polignac number, because 9965393 - 2⁴ = 9965377 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9965399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21530 + ... + 21987.

It is an arithmetic number, because the mean of its divisors is an integer number (2502285).

Almost surely, 2^9965393 is an apocalyptic number.

It is an amenable number.

9965393 is a deficient number, since it is larger than the sum of its proper divisors (43747).

9965393 is a wasteful number, since it uses less digits than its factorization.

9965393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43746.

The product of its digits is 196830, while the sum is 44.

The square root of 9965393 is about 3156.8010707043. The cubic root of 9965393 is about 215.1946533522.

The spelling of 9965393 in words is "nine million, nine hundred sixty-five thousand, three hundred ninety-three".