718493 has 2 divisors, whose sum is σ = 718494. Its totient is φ = 718492.

The previous prime is 718463. The next prime is 718511. The reversal of 718493 is 394817.

718493 is nontrivially palindromic in base 7.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 466489 + 252004 = 683^2 + 502^2 .

It is an emirp because it is prime and its reverse (394817) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 718493 - 2¹⁶ = 652957 is a prime.

It is a Chen prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 718493.

It is not a weakly prime, because it can be changed into another prime (718423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 359246 + 359247.

It is an arithmetic number, because the mean of its divisors is an integer number (359247).

2⁷¹⁸⁴⁹³ is an apocalyptic number.

It is an amenable number.

718493 is a deficient number, since it is larger than the sum of its proper divisors (1).

718493 is an equidigital number, since it uses as much as digits as its factorization.

718493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 32.

The square root of 718493 is about 847.6396640082. The cubic root of 718493 is about 89.5655190585.

The spelling of 718493 in words is "seven hundred eighteen thousand, four hundred ninety-three".