9671644 has 6 divisors (see below), whose sum is σ = 16925384. Its totient is φ = 4835820.

The previous prime is 9671639. The next prime is 9671647. The reversal of 9671644 is 4461769.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9671647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1208952 + ... + 1208959.

Almost surely, 2^9671644 is an apocalyptic number.

It is an amenable number.

9671644 is a deficient number, since it is larger than the sum of its proper divisors (7253740).

9671644 is a wasteful number, since it uses less digits than its factorization.

9671644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2417915 (or 2417913 counting only the distinct ones).

The product of its digits is 36288, while the sum is 37.

The square root of 9671644 is about 3109.9266872388. The cubic root of 9671644 is about 213.0591061989.

The spelling of 9671644 in words is "nine million, six hundred seventy-one thousand, six hundred forty-four".