493906917 has 24 divisors (see below), whose sum is σ = 792482400. Its totient is φ = 272498016.

The previous prime is 493906913. The next prime is 493906927. The reversal of 493906917 is 719609394.

It is not a de Polignac number, because 493906917 - 2² = 493906913 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (493906913) 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 23 ways as a sum of consecutive naturals, for example, 53667 + ... + 62192.

It is an arithmetic number, because the mean of its divisors is an integer number (33020100).

Almost surely, 2^493906917 is an apocalyptic number.

It is an amenable number.

493906917 is a deficient number, since it is larger than the sum of its proper divisors (298575483).

493906917 is a wasteful number, since it uses less digits than its factorization.

493906917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115905 (or 115898 counting only the distinct ones).

The product of its (nonzero) digits is 367416, while the sum is 48.

The square root of 493906917 is about 22224.0166711601. The cubic root of 493906917 is about 790.4632848479.

The spelling of 493906917 in words is "four hundred ninety-three million, nine hundred six thousand, nine hundred seventeen".