816443714 has 16 divisors (see below), whose sum is σ = 1276454400. Its totient is φ = 391214880.

The previous prime is 816443713. The next prime is 816443723. The reversal of 816443714 is 417344618.

It is a happy number.

It is a super-2 number, since 2×816443714² = 1333160676260227592, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (816443713) 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, 57539 + ... + 70310.

It is an arithmetic number, because the mean of its divisors is an integer number (79778400).

Almost surely, 2^816443714 is an apocalyptic number.

816443714 is a deficient number, since it is larger than the sum of its proper divisors (460010686).

816443714 is a wasteful number, since it uses less digits than its factorization.

816443714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127985.

The product of its digits is 64512, while the sum is 38.

The square root of 816443714 is about 28573.4792071249. The cubic root of 816443714 is about 934.6350922403.

It can be divided in two parts, 81644 and 3714, that added together give a palindrome (85358).

The spelling of 816443714 in words is "eight hundred sixteen million, four hundred forty-three thousand, seven hundred fourteen".