816944852 has 12 divisors (see below), whose sum is σ = 1435953120. Its totient is φ = 406672536.

The previous prime is 816944851. The next prime is 816944861. The reversal of 816944852 is 258449618.

It is a junction number, because it is equal to n+sod(n) for n = 816944797 and 816944806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (816944851) 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, 448952 + ... + 450767.

It is an arithmetic number, because the mean of its divisors is an integer number (119662760).

Almost surely, 2^816944852 is an apocalyptic number.

It is an amenable number.

816944852 is a deficient number, since it is larger than the sum of its proper divisors (619008268).

816944852 is a wasteful number, since it uses less digits than its factorization.

816944852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 899950 (or 899948 counting only the distinct ones).

The product of its digits is 552960, while the sum is 47.

The square root of 816944852 is about 28582.2471474865. The cubic root of 816944852 is about 934.8262813179.

The spelling of 816944852 in words is "eight hundred sixteen million, nine hundred forty-four thousand, eight hundred fifty-two".