321534463 has 2 divisors, whose sum is σ = 321534464. Its totient is φ = 321534462.

The previous prime is 321534443. The next prime is 321534467. The reversal of 321534463 is 364435123.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 321534463 - 2⁵ = 321534431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321534467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160767231 + 160767232.

It is an arithmetic number, because the mean of its divisors is an integer number (160767232).

Almost surely, 2^321534463 is an apocalyptic number.

321534463 is a deficient number, since it is larger than the sum of its proper divisors (1).

321534463 is an equidigital number, since it uses as much as digits as its factorization.

321534463 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 321534463 is about 17931.3820716642. The cubic root of 321534463 is about 685.0819253072.

Adding to 321534463 its reverse (364435123), we get a palindrome (685969586).

The spelling of 321534463 in words is "three hundred twenty-one million, five hundred thirty-four thousand, four hundred sixty-three".