8321963 has 4 divisors (see below), whose sum is σ = 8962128. Its totient is φ = 7681800.

The previous prime is 8321941. The next prime is 8321977. The reversal of 8321963 is 3691238.

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

It is a cyclic number.

It is not a de Polignac number, because 8321963 - 2¹⁶ = 8256427 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (8321903) 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, 320063 + ... + 320088.

It is an arithmetic number, because the mean of its divisors is an integer number (2240532).

Almost surely, 2^8321963 is an apocalyptic number.

8321963 is a deficient number, since it is larger than the sum of its proper divisors (640165).

8321963 is a wasteful number, since it uses less digits than its factorization.

8321963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640164.

The product of its digits is 7776, while the sum is 32.

The square root of 8321963 is about 2884.7812742043. The cubic root of 8321963 is about 202.6478156640.

The spelling of 8321963 in words is "eight million, three hundred twenty-one thousand, nine hundred sixty-three".