8863421 has 16 divisors (see below), whose sum is σ = 10523520. Its totient is φ = 7307520.

The previous prime is 8863399. The next prime is 8863423. The reversal of 8863421 is 1243688.

It is a cyclic number.

It is not a de Polignac number, because 8863421 - 2¹⁰ = 8862397 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8863423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25370 + ... + 25716.

It is an arithmetic number, because the mean of its divisors is an integer number (657720).

Almost surely, 2^8863421 is an apocalyptic number.

It is an amenable number.

8863421 is a deficient number, since it is larger than the sum of its proper divisors (1660099).

8863421 is a wasteful number, since it uses less digits than its factorization.

8863421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484.

The product of its digits is 9216, while the sum is 32.

The square root of 8863421 is about 2977.1498114808. The cubic root of 8863421 is about 206.9508078553.

The spelling of 8863421 in words is "eight million, eight hundred sixty-three thousand, four hundred twenty-one".