489782773 has 4 divisors (see below), whose sum is σ = 490335840. Its totient is φ = 489229708.

The previous prime is 489782737. The next prime is 489782803. The reversal of 489782773 is 377287984.

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 a de Polignac number, because none of the positive numbers 2^k-489782773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489782173) 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, 275203 + ... + 276976.

It is an arithmetic number, because the mean of its divisors is an integer number (122583960).

Almost surely, 2^489782773 is an apocalyptic number.

It is an amenable number.

489782773 is a deficient number, since it is larger than the sum of its proper divisors (553067).

489782773 is an equidigital number, since it uses as much as digits as its factorization.

489782773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553066.

The product of its digits is 4741632, while the sum is 55.

The square root of 489782773 is about 22131.0364194721. The cubic root of 489782773 is about 788.2569984009.

The spelling of 489782773 in words is "four hundred eighty-nine million, seven hundred eighty-two thousand, seven hundred seventy-three".