481997817 has 16 divisors (see below), whose sum is σ = 816081280. Its totient is φ = 275427216.

The previous prime is 481997809. The next prime is 481997819. The reversal of 481997817 is 718799184.

481997817 is a `hidden beast` number, since 481 + 99 + 78 + 1 + 7 = 666.

It is not a de Polignac number, because 481997817 - 2³ = 481997809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (481997819) 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, 1274938 + ... + 1275315.

It is an arithmetic number, because the mean of its divisors is an integer number (51005080).

Almost surely, 2^481997817 is an apocalyptic number.

It is an amenable number.

481997817 is a deficient number, since it is larger than the sum of its proper divisors (334083463).

481997817 is a wasteful number, since it uses less digits than its factorization.

481997817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2550269 (or 2550263 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 54.

The square root of 481997817 is about 21954.4486835812. The cubic root of 481997817 is about 784.0583009062.

The spelling of 481997817 in words is "four hundred eighty-one million, nine hundred ninety-seven thousand, eight hundred seventeen".