493888313 has 2 divisors, whose sum is σ = 493888314. Its totient is φ = 493888312.

The previous prime is 493888277. The next prime is 493888319. The reversal of 493888313 is 313888394.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 482812729 + 11075584 = 21973^2 + 3328^2 .

It is a cyclic number.

It is not a de Polignac number, because 493888313 - 2¹⁸ = 493626169 is a prime.

It is not a weakly prime, because it can be changed into another prime (493888319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246944156 + 246944157.

It is an arithmetic number, because the mean of its divisors is an integer number (246944157).

Almost surely, 2^493888313 is an apocalyptic number.

It is an amenable number.

493888313 is a deficient number, since it is larger than the sum of its proper divisors (1).

493888313 is an equidigital number, since it uses as much as digits as its factorization.

493888313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 497664, while the sum is 47.

The square root of 493888313 is about 22223.5981110170. The cubic root of 493888313 is about 790.4533599254.

The spelling of 493888313 in words is "four hundred ninety-three million, eight hundred eighty-eight thousand, three hundred thirteen".