487657641 has 8 divisors (see below), whose sum is σ = 652302144. Its totient is φ = 324059120.

The previous prime is 487657637. The next prime is 487657657. The reversal of 487657641 is 146756784.

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 487657641 - 2² = 487657637 is a prime.

It is not an unprimeable number, because it can be changed into a prime (487657601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 260406 + ... + 262271.

It is an arithmetic number, because the mean of its divisors is an integer number (81537768).

Almost surely, 2^487657641 is an apocalyptic number.

It is an amenable number.

487657641 is a deficient number, since it is larger than the sum of its proper divisors (164644503).

487657641 is a wasteful number, since it uses less digits than its factorization.

487657641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522991.

The product of its digits is 1128960, while the sum is 48.

The square root of 487657641 is about 22082.9717429516. The cubic root of 487657641 is about 787.1152821774.

The spelling of 487657641 in words is "four hundred eighty-seven million, six hundred fifty-seven thousand, six hundred forty-one".