489475761 has 4 divisors (see below), whose sum is σ = 652634352. Its totient is φ = 326317172.

The previous prime is 489475759. The next prime is 489475799. The reversal of 489475761 is 167574984.

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 489475761 - 2¹ = 489475759 is a prime.

It is not an unprimeable number, because it can be changed into a prime (489475361) 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, 81579291 + ... + 81579296.

It is an arithmetic number, because the mean of its divisors is an integer number (163158588).

Almost surely, 2^489475761 is an apocalyptic number.

It is an amenable number.

489475761 is a deficient number, since it is larger than the sum of its proper divisors (163158591).

489475761 is a wasteful number, since it uses less digits than its factorization.

489475761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163158590.

The product of its digits is 1693440, while the sum is 51.

The square root of 489475761 is about 22124.0991003024. The cubic root of 489475761 is about 788.0922621450.

The spelling of 489475761 in words is "four hundred eighty-nine million, four hundred seventy-five thousand, seven hundred sixty-one".