8672121 has 12 divisors (see below), whose sum is σ = 12558000. Its totient is φ = 5766840.

The previous prime is 8672117. The next prime is 8672161. The reversal of 8672121 is 1212768.

It is not a de Polignac number, because 8672121 - 2² = 8672117 is a prime.

8672121 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8672101) 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 11 ways as a sum of consecutive naturals, for example, 3526 + ... + 5456.

It is an arithmetic number, because the mean of its divisors is an integer number (1046500).

Almost surely, 2^8672121 is an apocalyptic number.

It is an amenable number.

8672121 is a deficient number, since it is larger than the sum of its proper divisors (3885879).

8672121 is a wasteful number, since it uses less digits than its factorization.

8672121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2436 (or 2433 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 8672121 is about 2944.8465155250. The cubic root of 8672121 is about 205.4510868011.

Adding to 8672121 its reverse (1212768), we get a palindrome (9884889).

The spelling of 8672121 in words is "eight million, six hundred seventy-two thousand, one hundred twenty-one".