8321279971 has 2 divisors, whose sum is σ = 8321279972. Its totient is φ = 8321279970.

The previous prime is 8321279929. The next prime is 8321280013. The reversal of 8321279971 is 1799721238.

It is a balanced prime because it is at equal distance from previous prime (8321279929) and next prime (8321280013).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8321279971 is a prime.

It is not a weakly prime, because it can be changed into another prime (8321279471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4160639985 + 4160639986.

It is an arithmetic number, because the mean of its divisors is an integer number (4160639986).

Almost surely, 2^8321279971 is an apocalyptic number.

8321279971 is a deficient number, since it is larger than the sum of its proper divisors (1).

8321279971 is an equidigital number, since it uses as much as digits as its factorization.

8321279971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 381024, while the sum is 49.

The square root of 8321279971 is about 91221.0500432877. The cubic root of 8321279971 is about 2026.4227137428.

The spelling of 8321279971 in words is "eight billion, three hundred twenty-one million, two hundred seventy-nine thousand, nine hundred seventy-one".