487791 has 12 divisors (see below), whose sum is σ = 714168. Its totient is φ = 320784.

The previous prime is 487789. The next prime is 487793. The reversal of 487791 is 197784.

It is an interprime number because it is at equal distance from previous prime (487789) and next prime (487793).

It is not a de Polignac number, because 487791 - 2¹ = 487789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (487793) 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 11 ways as a sum of consecutive naturals, for example, 421 + ... + 1073.

It is an arithmetic number, because the mean of its divisors is an integer number (59514).

2⁴⁸⁷⁷⁹¹ is an apocalyptic number.

487791 is a deficient number, since it is larger than the sum of its proper divisors (226377).

487791 is a wasteful number, since it uses less digits than its factorization.

487791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742 (or 739 counting only the distinct ones).

The product of its digits is 14112, while the sum is 36.

The square root of 487791 is about 698.4203605280. The cubic root of 487791 is about 78.7187026048.

The spelling of 487791 in words is "four hundred eighty-seven thousand, seven hundred ninety-one".