487419821 has 8 divisors (see below), whose sum is σ = 557248320. Its totient is φ = 417640608.

The previous prime is 487419817. The next prime is 487419871. The reversal of 487419821 is 128914784.

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

It is not a de Polignac number, because 487419821 - 2² = 487419817 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 (487419871) 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, 12110 + ... + 33488.

It is an arithmetic number, because the mean of its divisors is an integer number (69656040).

Almost surely, 2^487419821 is an apocalyptic number.

It is an amenable number.

487419821 is a deficient number, since it is larger than the sum of its proper divisors (69828499).

487419821 is a wasteful number, since it uses less digits than its factorization.

487419821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24643.

The product of its digits is 129024, while the sum is 44.

The square root of 487419821 is about 22077.5863943503. The cubic root of 487419821 is about 786.9873083841.

The spelling of 487419821 in words is "four hundred eighty-seven million, four hundred nineteen thousand, eight hundred twenty-one".