487851 has 16 divisors (see below), whose sum is σ = 801024. Its totient is φ = 257184.

The previous prime is 487843. The next prime is 487873. The reversal of 487851 is 158784.

It is a happy number.

It is not a de Polignac number, because 487851 - 2³ = 487843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (487811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 621 + ... + 1166.

It is an arithmetic number, because the mean of its divisors is an integer number (50064).

2⁴⁸⁷⁸⁵¹ is an apocalyptic number.

487851 is a deficient number, since it is larger than the sum of its proper divisors (313173).

487851 is a wasteful number, since it uses less digits than its factorization.

487851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1810.

The product of its digits is 8960, while the sum is 33.

The square root of 487851 is about 698.4633132814. The cubic root of 487851 is about 78.7219300311.

The spelling of 487851 in words is "four hundred eighty-seven thousand, eight hundred fifty-one".