488857821 has 8 divisors (see below), whose sum is σ = 686116320. Its totient is φ = 308752272.

The previous prime is 488857807. The next prime is 488857823. The reversal of 488857821 is 128758884.

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

It is not a de Polignac number, because 488857821 - 2¹³ = 488849629 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (488857823) 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, 4288170 + ... + 4288283.

It is an arithmetic number, because the mean of its divisors is an integer number (85764540).

Almost surely, 2^488857821 is an apocalyptic number.

It is an amenable number.

488857821 is a deficient number, since it is larger than the sum of its proper divisors (197258499).

488857821 is a wasteful number, since it uses less digits than its factorization.

488857821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8576475.

The product of its digits is 1146880, while the sum is 51.

The square root of 488857821 is about 22110.1293754695. The cubic root of 488857821 is about 787.7604794156.

The spelling of 488857821 in words is "four hundred eighty-eight million, eight hundred fifty-seven thousand, eight hundred twenty-one".