816303476 has 12 divisors (see below), whose sum is σ = 1434770820. Its totient is φ = 406368960.

The previous prime is 816303451. The next prime is 816303533. The reversal of 816303476 is 674303618.

It can be written as a sum of positive squares in 2 ways, for example, as 800890000 + 15413476 = 28300^2 + 3926^2 .

It is a super-3 number, since 3×816303476³ (a number of 28 digits) contains 333 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 444665 + ... + 446496.

It is an arithmetic number, because the mean of its divisors is an integer number (119564235).

Almost surely, 2^816303476 is an apocalyptic number.

It is an amenable number.

816303476 is a deficient number, since it is larger than the sum of its proper divisors (618467344).

816303476 is a wasteful number, since it uses less digits than its factorization.

816303476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 891394 (or 891392 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 816303476 is about 28571.0251128657. The cubic root of 816303476 is about 934.5815760541.

The spelling of 816303476 in words is "eight hundred sixteen million, three hundred three thousand, four hundred seventy-six".