481644871 has 4 divisors (see below), whose sum is σ = 481717744. Its totient is φ = 481572000.

The previous prime is 481644859. The next prime is 481644883. The reversal of 481644871 is 178446184.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (481644859) and next prime (481644883).

It is a cyclic number.

It is not a de Polignac number, because 481644871 - 2⁷ = 481644743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (481644571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25410 + ... + 40111.

It is an arithmetic number, because the mean of its divisors is an integer number (120429436).

Almost surely, 2^481644871 is an apocalyptic number.

481644871 is a deficient number, since it is larger than the sum of its proper divisors (72873).

481644871 is an equidigital number, since it uses as much as digits as its factorization.

481644871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72872.

The product of its digits is 172032, while the sum is 43.

The square root of 481644871 is about 21946.4090684558. The cubic root of 481644871 is about 783.8668769311.

It can be divided in two parts, 48164 and 4871, that added together give a palindrome (53035).

The spelling of 481644871 in words is "four hundred eighty-one million, six hundred forty-four thousand, eight hundred seventy-one".