493221635 has 4 divisors (see below), whose sum is σ = 591865968. Its totient is φ = 394577304.

The previous prime is 493221613. The next prime is 493221649. The reversal of 493221635 is 536122394.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 493221635 - 2⁶ = 493221571 is a prime.

It is a super-3 number, since 3×493221635³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 493221595 and 493221604.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 49322159 + ... + 49322168.

It is an arithmetic number, because the mean of its divisors is an integer number (147966492).

Almost surely, 2^493221635 is an apocalyptic number.

493221635 is a deficient number, since it is larger than the sum of its proper divisors (98644333).

493221635 is an equidigital number, since it uses as much as digits as its factorization.

493221635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98644332.

The product of its digits is 38880, while the sum is 35.

The square root of 493221635 is about 22208.5937195492. The cubic root of 493221635 is about 790.0975337572.

The spelling of 493221635 in words is "four hundred ninety-three million, two hundred twenty-one thousand, six hundred thirty-five".