321484871 has 2 divisors, whose sum is σ = 321484872. Its totient is φ = 321484870.

The previous prime is 321484843. The next prime is 321484901. The reversal of 321484871 is 178484123.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321484871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321484571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160742435 + 160742436.

It is an arithmetic number, because the mean of its divisors is an integer number (160742436).

Almost surely, 2^321484871 is an apocalyptic number.

321484871 is a deficient number, since it is larger than the sum of its proper divisors (1).

321484871 is an equidigital number, since it uses as much as digits as its factorization.

321484871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43008, while the sum is 38.

The square root of 321484871 is about 17929.9991912995. Note that the first 3 decimals coincide. The cubic root of 321484871 is about 685.0467021988.

The spelling of 321484871 in words is "three hundred twenty-one million, four hundred eighty-four thousand, eight hundred seventy-one".