493936557 has 4 divisors (see below), whose sum is σ = 658582080. Its totient is φ = 329291036.

The previous prime is 493936543. The next prime is 493936577. The reversal of 493936557 is 755639394.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 493936557 - 2⁶ = 493936493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (493936577) 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, 82322757 + ... + 82322762.

It is an arithmetic number, because the mean of its divisors is an integer number (164645520).

Almost surely, 2^493936557 is an apocalyptic number.

It is an amenable number.

493936557 is a deficient number, since it is larger than the sum of its proper divisors (164645523).

493936557 is a wasteful number, since it uses less digits than its factorization.

493936557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164645522.

The product of its digits is 3061800, while the sum is 51.

The square root of 493936557 is about 22224.6835073078. The cubic root of 493936557 is about 790.4790967768.

The spelling of 493936557 in words is "four hundred ninety-three million, nine hundred thirty-six thousand, five hundred fifty-seven".