816432852 has 12 divisors (see below), whose sum is σ = 1905010016. Its totient is φ = 272144280.

The previous prime is 816432823. The next prime is 816432887. The reversal of 816432852 is 258234618.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 816432852.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34018024 + ... + 34018047.

Almost surely, 2^816432852 is an apocalyptic number.

It is an amenable number.

816432852 is an abundant number, since it is smaller than the sum of its proper divisors (1088577164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

816432852 is a wasteful number, since it uses less digits than its factorization.

816432852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68036078 (or 68036076 counting only the distinct ones).

The product of its digits is 92160, while the sum is 39.

The square root of 816432852 is about 28573.2891351346. The cubic root of 816432852 is about 934.6309474143.

The spelling of 816432852 in words is "eight hundred sixteen million, four hundred thirty-two thousand, eight hundred fifty-two".