816923546 has 16 divisors (see below), whose sum is σ = 1254701184. Its totient is φ = 398702304.

The previous prime is 816923539. The next prime is 816923561. The reversal of 816923546 is 645329618.

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

It is a junction number, because it is equal to n+sod(n) for n = 816923497 and 816923506.

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 in 7 ways as a sum of consecutive naturals, for example, 236246 + ... + 239678.

It is an arithmetic number, because the mean of its divisors is an integer number (78418824).

Almost surely, 2^816923546 is an apocalyptic number.

816923546 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

816923546 is a deficient number, since it is larger than the sum of its proper divisors (437777638).

816923546 is a wasteful number, since it uses less digits than its factorization.

816923546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6245.

The product of its digits is 311040, while the sum is 44.

The square root of 816923546 is about 28581.8744311845. The cubic root of 816923546 is about 934.8181544609.

The spelling of 816923546 in words is "eight hundred sixteen million, nine hundred twenty-three thousand, five hundred forty-six".