9666345 has 32 divisors (see below), whose sum is σ = 17539200. Its totient is φ = 4506624.

The previous prime is 9666343. The next prime is 9666347. The reversal of 9666345 is 5436669.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (9666343) and next prime (9666347).

It is not a de Polignac number, because 9666345 - 2¹ = 9666343 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (9666343) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2401 + ... + 5009.

It is an arithmetic number, because the mean of its divisors is an integer number (548100).

Almost surely, 2^9666345 is an apocalyptic number.

9666345 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

It is an amenable number.

9666345 is a deficient number, since it is larger than the sum of its proper divisors (7872855).

9666345 is a wasteful number, since it uses less digits than its factorization.

9666345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2649.

The product of its digits is 116640, while the sum is 39.

The square root of 9666345 is about 3109.0746211695. The cubic root of 9666345 is about 213.0201880841.

It can be divided in two parts, 9666 and 345, that added together give a triangular number (10011 = T₁₄₁).

The spelling of 9666345 in words is "nine million, six hundred sixty-six thousand, three hundred forty-five".