487891634 has 8 divisors (see below), whose sum is σ = 732095280. Its totient is φ = 243859876.

The previous prime is 487891549. The next prime is 487891639. The reversal of 487891634 is 436198784.

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

It is not an unprimeable number, because it can be changed into a prime (487891639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35624 + ... + 47379.

It is an arithmetic number, because the mean of its divisors is an integer number (91511910).

Almost surely, 2^487891634 is an apocalyptic number.

487891634 is a deficient number, since it is larger than the sum of its proper divisors (244203646).

487891634 is a wasteful number, since it uses less digits than its factorization.

487891634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85944.

The product of its digits is 1161216, while the sum is 50.

The square root of 487891634 is about 22088.2691490302. The cubic root of 487891634 is about 787.2411560148.

The spelling of 487891634 in words is "four hundred eighty-seven million, eight hundred ninety-one thousand, six hundred thirty-four".