8863121 has 4 divisors (see below), whose sum is σ = 8919732. Its totient is φ = 8806512.

The previous prime is 8863109. The next prime is 8863133. The reversal of 8863121 is 1213688.

8863121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (8863109) and next prime (8863133).

It can be written as a sum of positive squares in 2 ways, for example, as 3845521 + 5017600 = 1961^2 + 2240^2 .

It is a cyclic number.

It is not a de Polignac number, because 8863121 - 2¹⁰ = 8862097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8860121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28070 + ... + 28383.

It is an arithmetic number, because the mean of its divisors is an integer number (2229933).

Almost surely, 2^8863121 is an apocalyptic number.

It is an amenable number.

8863121 is a deficient number, since it is larger than the sum of its proper divisors (56611).

8863121 is a wasteful number, since it uses less digits than its factorization.

8863121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56610.

The product of its digits is 2304, while the sum is 29.

The square root of 8863121 is about 2977.0994272950. The cubic root of 8863121 is about 206.9484729426.

The spelling of 8863121 in words is "eight million, eight hundred sixty-three thousand, one hundred twenty-one".