816146443 has 4 divisors (see below), whose sum is σ = 932738800. Its totient is φ = 699554088.

The previous prime is 816146411. The next prime is 816146453. The reversal of 816146443 is 344641618.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 816146443 - 2⁵ = 816146411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (816146453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58296168 + ... + 58296181.

It is an arithmetic number, because the mean of its divisors is an integer number (233184700).

Almost surely, 2^816146443 is an apocalyptic number.

816146443 is a deficient number, since it is larger than the sum of its proper divisors (116592357).

816146443 is a wasteful number, since it uses less digits than its factorization.

816146443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116592356.

The product of its digits is 55296, while the sum is 37.

The square root of 816146443 is about 28568.2768643823. The cubic root of 816146443 is about 934.5216434577.

The spelling of 816146443 in words is "eight hundred sixteen million, one hundred forty-six thousand, four hundred forty-three".