493814721 has 4 divisors (see below), whose sum is σ = 658419632. Its totient is φ = 329209812.

The previous prime is 493814707. The next prime is 493814743. The reversal of 493814721 is 127418394.

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 not a de Polignac number, because 493814721 - 2⁵ = 493814689 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 493814721.

It is not an unprimeable number, because it can be changed into a prime (493814771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82302451 + ... + 82302456.

It is an arithmetic number, because the mean of its divisors is an integer number (164604908).

Almost surely, 2^493814721 is an apocalyptic number.

It is an amenable number.

493814721 is a deficient number, since it is larger than the sum of its proper divisors (164604911).

493814721 is a wasteful number, since it uses less digits than its factorization.

493814721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164604910.

The product of its digits is 48384, while the sum is 39.

The square root of 493814721 is about 22221.9423318485. The cubic root of 493814721 is about 790.4140973826.

The spelling of 493814721 in words is "four hundred ninety-three million, eight hundred fourteen thousand, seven hundred twenty-one".