9672661 has 2 divisors, whose sum is σ = 9672662. Its totient is φ = 9672660.

The previous prime is 9672629. The next prime is 9672683. The reversal of 9672661 is 1662769.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9579025 + 93636 = 3095^2 + 306^2 .

It is a cyclic number.

It is not a de Polignac number, because 9672661 - 2⁵ = 9672629 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9672661.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9672361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4836330 + 4836331.

It is an arithmetic number, because the mean of its divisors is an integer number (4836331).

Almost surely, 2^9672661 is an apocalyptic number.

It is an amenable number.

9672661 is a deficient number, since it is larger than the sum of its proper divisors (1).

9672661 is an equidigital number, since it uses as much as digits as its factorization.

9672661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27216, while the sum is 37.

The square root of 9672661 is about 3110.0901916182. The cubic root of 9672661 is about 213.0665738544.

The spelling of 9672661 in words is "nine million, six hundred seventy-two thousand, six hundred sixty-one".