8608821 has 16 divisors (see below), whose sum is σ = 12539520. Its totient is φ = 5221440.

The previous prime is 8608801. The next prime is 8608823. The reversal of 8608821 is 1288068.

It is not a de Polignac number, because 8608821 - 2¹³ = 8600629 is a prime.

It is a super-2 number, since 2×8608821² = 148223598020082, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8608823) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 1215 + ... + 4323.

It is an arithmetic number, because the mean of its divisors is an integer number (783720).

Almost surely, 2^8608821 is an apocalyptic number.

It is an amenable number.

8608821 is a deficient number, since it is larger than the sum of its proper divisors (3930699).

8608821 is a wasteful number, since it uses less digits than its factorization.

8608821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3196.

The product of its (nonzero) digits is 6144, while the sum is 33.

The square root of 8608821 is about 2934.0792422837. The cubic root of 8608821 is about 204.9499858160.

The spelling of 8608821 in words is "eight million, six hundred eight thousand, eight hundred twenty-one".