493982817 has 4 divisors (see below), whose sum is σ = 658643760. Its totient is φ = 329321876.

The previous prime is 493982803. The next prime is 493982833. The reversal of 493982817 is 718289394.

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 493982817 - 2⁷ = 493982689 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 493982817.

It is not an unprimeable number, because it can be changed into a prime (493982857) 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, 82330467 + ... + 82330472.

It is an arithmetic number, because the mean of its divisors is an integer number (164660940).

Almost surely, 2^493982817 is an apocalyptic number.

It is an amenable number.

493982817 is a deficient number, since it is larger than the sum of its proper divisors (164660943).

493982817 is a wasteful number, since it uses less digits than its factorization.

493982817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164660942.

The product of its digits is 870912, while the sum is 51.

The square root of 493982817 is about 22225.7242176717. The cubic root of 493982817 is about 790.5037736446.

The spelling of 493982817 in words is "four hundred ninety-three million, nine hundred eighty-two thousand, eight hundred seventeen".