816021296 has 20 divisors (see below), whose sum is σ = 1582581000. Its totient is φ = 407613312.

The previous prime is 816021293. The next prime is 816021299. The reversal of 816021296 is 692120618.

816021296 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (816021293) and next prime (816021299).

It is not an unprimeable number, because it can be changed into a prime (816021293) 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, 7526 + ... + 41093.

It is an arithmetic number, because the mean of its divisors is an integer number (79129050).

Almost surely, 2^816021296 is an apocalyptic number.

It is an amenable number.

816021296 is a deficient number, since it is larger than the sum of its proper divisors (766559704).

816021296 is a wasteful number, since it uses less digits than its factorization.

816021296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49676 (or 49670 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 816021296 is about 28566.0864662978. The cubic root of 816021296 is about 934.4738748416.

The spelling of 816021296 in words is "eight hundred sixteen million, twenty-one thousand, two hundred ninety-six".