9661672 has 16 divisors (see below), whose sum is σ = 18286560. Its totient is φ = 4785264.

The previous prime is 9661667. The next prime is 9661681. The reversal of 9661672 is 2761669.

9661672 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4788 + ... + 6499.

It is an arithmetic number, because the mean of its divisors is an integer number (1142910).

Almost surely, 2^9661672 is an apocalyptic number.

It is an amenable number.

9661672 is a deficient number, since it is larger than the sum of its proper divisors (8624888).

9661672 is a wasteful number, since it uses less digits than its factorization.

9661672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11400 (or 11396 counting only the distinct ones).

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

The square root of 9661672 is about 3108.3230205370. The cubic root of 9661672 is about 212.9858557764.

The spelling of 9661672 in words is "nine million, six hundred sixty-one thousand, six hundred seventy-two".