488731021 has 8 divisors (see below), whose sum is σ = 494019864. Its totient is φ = 483451200.

The previous prime is 488731007. The next prime is 488731049. The reversal of 488731021 is 120137884.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 121242121 + 367488900 = 11011^2 + 19170^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 488731021 - 2⁹ = 488730509 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 (488731081) 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, 206175 + ... + 208531.

It is an arithmetic number, because the mean of its divisors is an integer number (61752483).

Almost surely, 2^488731021 is an apocalyptic number.

It is an amenable number.

488731021 is a deficient number, since it is larger than the sum of its proper divisors (5288843).

488731021 is a wasteful number, since it uses less digits than its factorization.

488731021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4511.

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 488731021 is about 22107.2617255055. The cubic root of 488731021 is about 787.6923637236.

It can be divided in two parts, 48873 and 1021, that added together give a palindrome (49894).

The spelling of 488731021 in words is "four hundred eighty-eight million, seven hundred thirty-one thousand, twenty-one".