493313869 has 4 divisors (see below), whose sum is σ = 494453596. Its totient is φ = 492174144.

The previous prime is 493313839. The next prime is 493313897. The reversal of 493313869 is 968313394.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 968313394 = 2 ⋅484156697.

It can be written as a sum of positive squares in 2 ways, for example, as 281232900 + 212080969 = 16770^2 + 14563^2 .

It is a cyclic number.

It is not a de Polignac number, because 493313869 - 2⁷ = 493313741 is a prime.

It is a super-2 number, since 2×493313869² = 486717146695498322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (493313839) 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 in 3 ways as a sum of consecutive naturals, for example, 569214 + ... + 570079.

It is an arithmetic number, because the mean of its divisors is an integer number (123613399).

Almost surely, 2^493313869 is an apocalyptic number.

It is an amenable number.

493313869 is a deficient number, since it is larger than the sum of its proper divisors (1139727).

493313869 is a wasteful number, since it uses less digits than its factorization.

493313869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1139726.

The product of its digits is 419904, while the sum is 46.

The square root of 493313869 is about 22210.6701609834. The cubic root of 493313869 is about 790.1467809304.

The spelling of 493313869 in words is "four hundred ninety-three million, three hundred thirteen thousand, eight hundred sixty-nine".