493685919 has 6 divisors (see below), whose sum is σ = 713101896. Its totient is φ = 329123940.

The previous prime is 493685903. The next prime is 493685923. The reversal of 493685919 is 919586394.

493685919 is a `hidden beast` number, since 49 + 3 + 6 + 8 + 591 + 9 = 666.

It is not a de Polignac number, because 493685919 - 2⁴ = 493685903 is a prime.

It is a super-2 number, since 2×493685919² = 487451573237749122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (493685989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27426987 + ... + 27427004.

It is an arithmetic number, because the mean of its divisors is an integer number (118850316).

Almost surely, 2^493685919 is an apocalyptic number.

493685919 is a deficient number, since it is larger than the sum of its proper divisors (219415977).

493685919 is a wasteful number, since it uses less digits than its factorization.

493685919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54853997 (or 54853994 counting only the distinct ones).

The product of its digits is 2099520, while the sum is 54.

The square root of 493685919 is about 22219.0440613452. The cubic root of 493685919 is about 790.3453700070.

The spelling of 493685919 in words is "four hundred ninety-three million, six hundred eighty-five thousand, nine hundred nineteen".