493968641 has 2 divisors, whose sum is σ = 493968642. Its totient is φ = 493968640.

The previous prime is 493968617. The next prime is 493968647. The reversal of 493968641 is 146869394.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 491730625 + 2238016 = 22175^2 + 1496^2 .

It is a cyclic number.

It is not a de Polignac number, because 493968641 - 2⁶ = 493968577 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 493968641.

It is not a weakly prime, because it can be changed into another prime (493968647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246984320 + 246984321.

It is an arithmetic number, because the mean of its divisors is an integer number (246984321).

Almost surely, 2^493968641 is an apocalyptic number.

It is an amenable number.

493968641 is a deficient number, since it is larger than the sum of its proper divisors (1).

493968641 is an equidigital number, since it uses as much as digits as its factorization.

493968641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1119744, while the sum is 50.

The square root of 493968641 is about 22225.4053056407. The cubic root of 493968641 is about 790.4962117833.

The spelling of 493968641 in words is "four hundred ninety-three million, nine hundred sixty-eight thousand, six hundred forty-one".