457326643 has 2 divisors, whose sum is σ = 457326644. Its totient is φ = 457326642.

The previous prime is 457326581. The next prime is 457326647. The reversal of 457326643 is 346623754.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-457326643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 457326596 and 457326605.

It is not a weakly prime, because it can be changed into another prime (457326647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228663321 + 228663322.

It is an arithmetic number, because the mean of its divisors is an integer number (228663322).

Almost surely, 2^457326643 is an apocalyptic number.

457326643 is a deficient number, since it is larger than the sum of its proper divisors (1).

457326643 is an equidigital number, since it uses as much as digits as its factorization.

457326643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 40.

The square root of 457326643 is about 21385.1968192954. The cubic root of 457326643 is about 770.4459344187.

The spelling of 457326643 in words is "four hundred fifty-seven million, three hundred twenty-six thousand, six hundred forty-three".