816212834 has 8 divisors (see below), whose sum is σ = 1231651008. Its totient is φ = 405662500.

The previous prime is 816212821. The next prime is 816212843. The reversal of 816212834 is 438212618.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 816212794 and 816212803.

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, 1221542 + ... + 1222209.

It is an arithmetic number, because the mean of its divisors is an integer number (153956376).

Almost surely, 2^816212834 is an apocalyptic number.

816212834 is a deficient number, since it is larger than the sum of its proper divisors (415438174).

816212834 is a wasteful number, since it uses less digits than its factorization.

816212834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2443920.

The product of its digits is 18432, while the sum is 35.

The square root of 816212834 is about 28569.4388114293. The cubic root of 816212834 is about 934.5469829233.

The spelling of 816212834 in words is "eight hundred sixteen million, two hundred twelve thousand, eight hundred thirty-four".