8321007963 has 8 divisors (see below), whose sum is σ = 11168152576. Its totient is φ = 5510601000.

The previous prime is 8321007949. The next prime is 8321007979. The reversal of 8321007963 is 3697001238.

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

It is not a de Polignac number, because 8321007963 - 2¹⁴ = 8320991579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8321047963) 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, 9183883 + ... + 9184788.

It is an arithmetic number, because the mean of its divisors is an integer number (1396019072).

Almost surely, 2^8321007963 is an apocalyptic number.

8321007963 is a deficient number, since it is larger than the sum of its proper divisors (2847144613).

8321007963 is a wasteful number, since it uses less digits than its factorization.

8321007963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18368825.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 8321007963 is about 91219.5591032976. The cubic root of 8321007963 is about 2026.4006334380.

The spelling of 8321007963 in words is "eight billion, three hundred twenty-one million, seven thousand, nine hundred sixty-three".