8247121 has 8 divisors (see below), whose sum is σ = 8718080. Its totient is φ = 7779888.

The previous prime is 8247103. The next prime is 8247199. The reversal of 8247121 is 1217428.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8247121 - 2⁵ = 8247089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8247101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4480 + ... + 6046.

It is an arithmetic number, because the mean of its divisors is an integer number (1089760).

Almost surely, 2^8247121 is an apocalyptic number.

It is an amenable number.

8247121 is a deficient number, since it is larger than the sum of its proper divisors (470959).

8247121 is a wasteful number, since it uses less digits than its factorization.

8247121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1863.

The product of its digits is 896, while the sum is 25.

The square root of 8247121 is about 2871.7801099666. The cubic root of 8247121 is about 202.0384937914.

The spelling of 8247121 in words is "eight million, two hundred forty-seven thousand, one hundred twenty-one".