487724961 has 4 divisors (see below), whose sum is σ = 650299952. Its totient is φ = 325149972.

The previous prime is 487724911. The next prime is 487724977. The reversal of 487724961 is 169427784.

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 487724961 - 2⁷ = 487724833 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 487724961.

It is not an unprimeable number, because it can be changed into a prime (487724911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81287491 + ... + 81287496.

It is an arithmetic number, because the mean of its divisors is an integer number (162574988).

Almost surely, 2^487724961 is an apocalyptic number.

It is an amenable number.

487724961 is a deficient number, since it is larger than the sum of its proper divisors (162574991).

487724961 is a wasteful number, since it uses less digits than its factorization.

487724961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162574990.

The product of its digits is 677376, while the sum is 48.

The square root of 487724961 is about 22084.4959417235. The cubic root of 487724961 is about 787.1515003205.

The spelling of 487724961 in words is "four hundred eighty-seven million, seven hundred twenty-four thousand, nine hundred sixty-one".