9821672 has 32 divisors (see below), whose sum is σ = 21227520. Its totient is φ = 4173120.

The previous prime is 9821659. The next prime is 9821681. The reversal of 9821672 is 2761289.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6422 + ... + 7802.

It is an arithmetic number, because the mean of its divisors is an integer number (663360).

Almost surely, 2^9821672 is an apocalyptic number.

It is an amenable number.

9821672 is an abundant number, since it is smaller than the sum of its proper divisors (11405848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9821672 is a wasteful number, since it uses less digits than its factorization.

9821672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1521 (or 1517 counting only the distinct ones).

The product of its digits is 12096, while the sum is 35.

The square root of 9821672 is about 3133.9546901639. The cubic root of 9821672 is about 214.1551266995.

The spelling of 9821672 in words is "nine million, eight hundred twenty-one thousand, six hundred seventy-two".