816477476 has 6 divisors (see below), whose sum is σ = 1428835590. Its totient is φ = 408238736.

The previous prime is 816477469. The next prime is 816477491. The reversal of 816477476 is 674774618.

It can be written as a sum of positive squares in only one way, i.e., 668222500 + 148254976 = 25850^2 + 12176^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102059681 + ... + 102059688.

It is an arithmetic number, because the mean of its divisors is an integer number (238139265).

Almost surely, 2^816477476 is an apocalyptic number.

It is an amenable number.

816477476 is a deficient number, since it is larger than the sum of its proper divisors (612358114).

816477476 is a wasteful number, since it uses less digits than its factorization.

816477476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204119373 (or 204119371 counting only the distinct ones).

The product of its digits is 1580544, while the sum is 50.

The square root of 816477476 is about 28574.0699936148. The cubic root of 816477476 is about 934.6479752329.

The spelling of 816477476 in words is "eight hundred sixteen million, four hundred seventy-seven thousand, four hundred seventy-six".