493721567 has 2 divisors, whose sum is σ = 493721568. Its totient is φ = 493721566.

The previous prime is 493721489. The next prime is 493721581. The reversal of 493721567 is 765127394.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 493721567 - 2¹⁰ = 493720543 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (493721867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246860783 + 246860784.

It is an arithmetic number, because the mean of its divisors is an integer number (246860784).

Almost surely, 2^493721567 is an apocalyptic number.

493721567 is a deficient number, since it is larger than the sum of its proper divisors (1).

493721567 is an equidigital number, since it uses as much as digits as its factorization.

493721567 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 317520, while the sum is 44.

The square root of 493721567 is about 22219.8462415922. The cubic root of 493721567 is about 790.3643925965.

The spelling of 493721567 in words is "four hundred ninety-three million, seven hundred twenty-one thousand, five hundred sixty-seven".