488728521 has 12 divisors (see below), whose sum is σ = 708040372. Its totient is φ = 324850176.

The previous prime is 488728489. The next prime is 488728531. The reversal of 488728521 is 125827884.

It is a happy number.

488728521 is a `hidden beast` number, since 48 + 87 + 2 + 8 + 521 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 322705296 + 166023225 = 17964^2 + 12885^2 .

It is not a de Polignac number, because 488728521 - 2⁵ = 488728489 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (488728531) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77536 + ... + 83601.

Almost surely, 2^488728521 is an apocalyptic number.

It is an amenable number.

488728521 is a deficient number, since it is larger than the sum of its proper divisors (219311851).

488728521 is a wasteful number, since it uses less digits than its factorization.

488728521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161480 (or 161477 counting only the distinct ones).

The product of its digits is 286720, while the sum is 45.

The square root of 488728521 is about 22107.2051829262. The cubic root of 488728521 is about 787.6910206302.

The spelling of 488728521 in words is "four hundred eighty-eight million, seven hundred twenty-eight thousand, five hundred twenty-one".