321345463 has 2 divisors, whose sum is σ = 321345464. Its totient is φ = 321345462.

The previous prime is 321345449. The next prime is 321345487. The reversal of 321345463 is 364543123.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 321345463 - 2⁹ = 321344951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321345403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160672731 + 160672732.

It is an arithmetic number, because the mean of its divisors is an integer number (160672732).

Almost surely, 2^321345463 is an apocalyptic number.

321345463 is a deficient number, since it is larger than the sum of its proper divisors (1).

321345463 is an equidigital number, since it uses as much as digits as its factorization.

321345463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 31.

The square root of 321345463 is about 17926.1112068401. Note that the first 3 decimals coincide. The cubic root of 321345463 is about 684.9476671619.

Adding to 321345463 its reverse (364543123), we get a palindrome (685888586).

The spelling of 321345463 in words is "three hundred twenty-one million, three hundred forty-five thousand, four hundred sixty-three".