8821672 has 8 divisors (see below), whose sum is σ = 16540650. Its totient is φ = 4410832.

The previous prime is 8821663. The next prime is 8821711. The reversal of 8821672 is 2761288.

It can be written as a sum of positive squares in only one way, i.e., 7986276 + 835396 = 2826^2 + 914^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551347 + ... + 551362.

Almost surely, 2^8821672 is an apocalyptic number.

It is an amenable number.

8821672 is a deficient number, since it is larger than the sum of its proper divisors (7718978).

8821672 is a wasteful number, since it uses less digits than its factorization.

8821672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1102715 (or 1102711 counting only the distinct ones).

The product of its digits is 10752, while the sum is 34.

The square root of 8821672 is about 2970.1299634864. The cubic root of 8821672 is about 206.6253657785.

It can be divided in two parts, 88216 and 72, that added together give a palindrome (88288).

The spelling of 8821672 in words is "eight million, eight hundred twenty-one thousand, six hundred seventy-two".