816353828 has 24 divisors (see below), whose sum is σ = 1480052280. Its totient is φ = 393523200.

The previous prime is 816353807. The next prime is 816353833. The reversal of 816353828 is 828353618.

It can be written as a sum of positive squares in 4 ways, for example, as 476025124 + 340328704 = 21818^2 + 18448^2 .

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80228 + ... + 89828.

It is an arithmetic number, because the mean of its divisors is an integer number (61668845).

Almost surely, 2^816353828 is an apocalyptic number.

It is an amenable number.

816353828 is a deficient number, since it is larger than the sum of its proper divisors (663698452).

816353828 is a wasteful number, since it uses less digits than its factorization.

816353828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10367 (or 10365 counting only the distinct ones).

The product of its digits is 276480, while the sum is 44.

The square root of 816353828 is about 28571.9062717208. The cubic root of 816353828 is about 934.6007915728.

The spelling of 816353828 in words is "eight hundred sixteen million, three hundred fifty-three thousand, eight hundred twenty-eight".