480171985 has 16 divisors (see below), whose sum is σ = 584952192. Its totient is φ = 378352000.

The previous prime is 480171983. The next prime is 480172073. The reversal of 480171985 is 589171084.

It is a happy number.

It is not a de Polignac number, because 480171985 - 2¹ = 480171983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (480171983) 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, 87060 + ... + 92410.

It is an arithmetic number, because the mean of its divisors is an integer number (36559512).

Almost surely, 2^480171985 is an apocalyptic number.

It is an amenable number.

480171985 is a deficient number, since it is larger than the sum of its proper divisors (104780207).

480171985 is a wasteful number, since it uses less digits than its factorization.

480171985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5624.

The product of its (nonzero) digits is 80640, while the sum is 43.

The square root of 480171985 is about 21912.8269513543. The cubic root of 480171985 is about 783.0670307494.

The spelling of 480171985 in words is "four hundred eighty million, one hundred seventy-one thousand, nine hundred eighty-five".