487753644 has 144 divisors (see below), whose sum is σ = 1375266816. Its totient is φ = 134064000.

The previous prime is 487753633. The next prime is 487753657. The reversal of 487753644 is 446357784.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 487753593 and 487753602.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2553589 + ... + 2553779.

It is an arithmetic number, because the mean of its divisors is an integer number (9550464).

Almost surely, 2^487753644 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 487753644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (687633408).

487753644 is an abundant number, since it is smaller than the sum of its proper divisors (887513172).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

487753644 is a wasteful number, since it uses less digits than its factorization.

487753644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356 (or 347 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 48.

The square root of 487753644 is about 22085.1453244030. The cubic root of 487753644 is about 787.1669307548.

The spelling of 487753644 in words is "four hundred eighty-seven million, seven hundred fifty-three thousand, six hundred forty-four".