816481471 has 32 divisors (see below), whose sum is σ = 949536000. Its totient is φ = 695755008.

The previous prime is 816481459. The next prime is 816481487. The reversal of 816481471 is 174184618.

816481471 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 816481471 - 2⁷ = 816481343 is a prime.

It is a super-3 number, since 3×816481471³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (816481451) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2608411 + ... + 2608723.

It is an arithmetic number, because the mean of its divisors is an integer number (29673000).

Almost surely, 2^816481471 is an apocalyptic number.

816481471 is a deficient number, since it is larger than the sum of its proper divisors (133054529).

816481471 is a wasteful number, since it uses less digits than its factorization.

816481471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583.

The product of its digits is 43008, while the sum is 40.

The square root of 816481471 is about 28574.1398995665. The cubic root of 816481471 is about 934.6494996320.

The spelling of 816481471 in words is "eight hundred sixteen million, four hundred eighty-one thousand, four hundred seventy-one".