9665071 has 8 divisors (see below), whose sum is σ = 10435824. Its totient is φ = 8898240.

The previous prime is 9665069. The next prime is 9665107. The reversal of 9665071 is 1705669.

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

It is not a de Polignac number, because 9665071 - 2¹ = 9665069 is a prime.

It is a Duffinian number.

9665071 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9665041) 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, 6060 + ... + 7486.

It is an arithmetic number, because the mean of its divisors is an integer number (1304478).

Almost surely, 2^9665071 is an apocalyptic number.

9665071 is a deficient number, since it is larger than the sum of its proper divisors (770753).

9665071 is a wasteful number, since it uses less digits than its factorization.

9665071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1961.

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 9665071 is about 3108.8697303039. The cubic root of 9665071 is about 213.0108291643.

It can be divided in two parts, 96650 and 71, that added together give a square (96721 = 311²).

The spelling of 9665071 in words is "nine million, six hundred sixty-five thousand, seventy-one".