485987871 has 16 divisors (see below), whose sum is σ = 683056640. Its totient is φ = 306504000.

The previous prime is 485987863. The next prime is 485987903. The reversal of 485987871 is 178789584.

It is not a de Polignac number, because 485987871 - 2³ = 485987863 is a prime.

It is a super-2 number, since 2×485987871² = 472368421518225282, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (485987851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37131 + ... + 48483.

It is an arithmetic number, because the mean of its divisors is an integer number (42691040).

Almost surely, 2^485987871 is an apocalyptic number.

485987871 is a deficient number, since it is larger than the sum of its proper divisors (197068769).

485987871 is a wasteful number, since it uses less digits than its factorization.

485987871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12126.

The product of its digits is 4515840, while the sum is 57.

The square root of 485987871 is about 22045.1325920258. The cubic root of 485987871 is about 786.2158776790.

The spelling of 485987871 in words is "four hundred eighty-five million, nine hundred eighty-seven thousand, eight hundred seventy-one".