323979641 has 2 divisors, whose sum is σ = 323979642. Its totient is φ = 323979640.

The previous prime is 323979631. The next prime is 323979647. The reversal of 323979641 is 146979323.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 248220025 + 75759616 = 15755^2 + 8704^2 .

It is a cyclic number.

It is not a de Polignac number, because 323979641 - 2⁶ = 323979577 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 323979592 and 323979601.

It is not a weakly prime, because it can be changed into another prime (323979647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161989820 + 161989821.

It is an arithmetic number, because the mean of its divisors is an integer number (161989821).

Almost surely, 2^323979641 is an apocalyptic number.

It is an amenable number.

323979641 is a deficient number, since it is larger than the sum of its proper divisors (1).

323979641 is an equidigital number, since it uses as much as digits as its factorization.

323979641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 244944, while the sum is 44.

The square root of 323979641 is about 17999.4344633380. The cubic root of 323979641 is about 686.8141592817.

The spelling of 323979641 in words is "three hundred twenty-three million, nine hundred seventy-nine thousand, six hundred forty-one".