816884043 has 8 divisors (see below), whose sum is σ = 1146504000. Its totient is φ = 515926728.

The previous prime is 816884027. The next prime is 816884053. The reversal of 816884043 is 340488618.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 816884043 - 2⁴ = 816884027 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 816883986 and 816884004.

It is not an unprimeable number, because it can be changed into a prime (816884023) by changing a digit.

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, 7165593 + ... + 7165706.

It is an arithmetic number, because the mean of its divisors is an integer number (143313000).

Almost surely, 2^816884043 is an apocalyptic number.

816884043 is a deficient number, since it is larger than the sum of its proper divisors (329619957).

816884043 is a wasteful number, since it uses less digits than its factorization.

816884043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14331321.

The product of its (nonzero) digits is 147456, while the sum is 42.

The square root of 816884043 is about 28581.1833729816. The cubic root of 816884043 is about 934.8030862549.

The spelling of 816884043 in words is "eight hundred sixteen million, eight hundred eighty-four thousand, forty-three".