493036857 has 6 divisors (see below), whose sum is σ = 712164362. Its totient is φ = 328691232.

The previous prime is 493036829. The next prime is 493036861. The reversal of 493036857 is 758630394.

It can be written as a sum of positive squares in only one way, i.e., 349540416 + 143496441 = 18696^2 + 11979^2 .

It is not a de Polignac number, because 493036857 - 2¹¹ = 493034809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (493036897) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27390928 + ... + 27390945.

Almost surely, 2^493036857 is an apocalyptic number.

It is an amenable number.

493036857 is a deficient number, since it is larger than the sum of its proper divisors (219127505).

493036857 is a wasteful number, since it uses less digits than its factorization.

493036857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54781879 (or 54781876 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The square root of 493036857 is about 22204.4332735605. The cubic root of 493036857 is about 789.9988554168.

The spelling of 493036857 in words is "four hundred ninety-three million, thirty-six thousand, eight hundred fifty-seven".