816704608 has 24 divisors (see below), whose sum is σ = 1677796848. Its totient is φ = 390597504.

The previous prime is 816704563. The next prime is 816704617. The reversal of 816704608 is 806407618.

It is a super-3 number, since 3×816704608³ (a number of 28 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

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, 554091 + ... + 555562.

It is an arithmetic number, because the mean of its divisors is an integer number (69908202).

Almost surely, 2^816704608 is an apocalyptic number.

It is an amenable number.

816704608 is an abundant number, since it is smaller than the sum of its proper divisors (861092240).

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

816704608 is a wasteful number, since it uses less digits than its factorization.

816704608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1109686 (or 1109678 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 816704608 is about 28578.0441598091. The cubic root of 816704608 is about 934.7346356279.

The spelling of 816704608 in words is "eight hundred sixteen million, seven hundred four thousand, six hundred eight".