489471377 has 4 divisors (see below), whose sum is σ = 498706740. Its totient is φ = 480236016.

The previous prime is 489471337. The next prime is 489471449. The reversal of 489471377 is 773174984.

It is a Cunningham number, because it is equal to 22124²+1.

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

It can be written as a sum of positive squares in 2 ways, for example, as 352838656 + 136632721 = 18784^2 + 11689^2 .

It is a cyclic number.

It is not a de Polignac number, because 489471377 - 2⁶ = 489471313 is a prime.

It is a super-2 number, since 2×489471377² = 479164457804552258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (489471317) 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, 4617602 + ... + 4617707.

It is an arithmetic number, because the mean of its divisors is an integer number (124676685).

Almost surely, 2^489471377 is an apocalyptic number.

It is an amenable number.

489471377 is a deficient number, since it is larger than the sum of its proper divisors (9235363).

489471377 is an equidigital number, since it uses as much as digits as its factorization.

489471377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9235362.

The product of its digits is 1185408, while the sum is 50.

The square root of 489471377 is about 22124.0000225999. Note that the first 4 decimals coincide. The cubic root of 489471377 is about 788.0899092830.

The spelling of 489471377 in words is "four hundred eighty-nine million, four hundred seventy-one thousand, three hundred seventy-seven".