493798387 has 2 divisors, whose sum is σ = 493798388. Its totient is φ = 493798386.

The previous prime is 493798373. The next prime is 493798421. The reversal of 493798387 is 783897394.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-493798387 is a prime.

It is not a weakly prime, because it can be changed into another prime (493798187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246899193 + 246899194.

It is an arithmetic number, because the mean of its divisors is an integer number (246899194).

Almost surely, 2^493798387 is an apocalyptic number.

493798387 is a deficient number, since it is larger than the sum of its proper divisors (1).

493798387 is an equidigital number, since it uses as much as digits as its factorization.

493798387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9144576, while the sum is 58.

The square root of 493798387 is about 22221.5748091804. The cubic root of 493798387 is about 790.4053823958.

The spelling of 493798387 in words is "four hundred ninety-three million, seven hundred ninety-eight thousand, three hundred eighty-seven".