323979647 has 2 divisors, whose sum is σ = 323979648. Its totient is φ = 323979646.

The previous prime is 323979641. The next prime is 323979661. The reversal of 323979647 is 746979323.

It is a weak prime.

It is an emirp because it is prime and its reverse (746979323) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 323979647 - 2⁴ = 323979631 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 323979595 and 323979604.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (323979641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161989823 + 161989824.

It is an arithmetic number, because the mean of its divisors is an integer number (161989824).

Almost surely, 2^323979647 is an apocalyptic number.

323979647 is a deficient number, since it is larger than the sum of its proper divisors (1).

323979647 is an equidigital number, since it uses as much as digits as its factorization.

323979647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1714608, while the sum is 50.

The square root of 323979647 is about 17999.4346300099. The cubic root of 323979647 is about 686.8141635216.

The spelling of 323979647 in words is "three hundred twenty-three million, nine hundred seventy-nine thousand, six hundred forty-seven".