488921721 has 8 divisors (see below), whose sum is σ = 652189824. Its totient is φ = 325800720.

The previous prime is 488921651. The next prime is 488921729. The reversal of 488921721 is 127129884.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 488921721 - 2²³ = 480533113 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (488921729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28770 + ... + 42491.

It is an arithmetic number, because the mean of its divisors is an integer number (81523728).

Almost surely, 2^488921721 is an apocalyptic number.

It is an amenable number.

488921721 is a deficient number, since it is larger than the sum of its proper divisors (163268103).

488921721 is a wasteful number, since it uses less digits than its factorization.

488921721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73551.

The product of its digits is 64512, while the sum is 42.

The square root of 488921721 is about 22111.5743672856. The cubic root of 488921721 is about 787.7948013932.

The spelling of 488921721 in words is "four hundred eighty-eight million, nine hundred twenty-one thousand, seven hundred twenty-one".