816673077 has 32 divisors (see below), whose sum is σ = 1322386560. Its totient is φ = 494012160.

The previous prime is 816673069. The next prime is 816673087. The reversal of 816673077 is 770376618.

It is a happy number.

816673077 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 816673077 - 2³ = 816673069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (816673037) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 173803 + ... + 178439.

It is an arithmetic number, because the mean of its divisors is an integer number (41324580).

Almost surely, 2^816673077 is an apocalyptic number.

It is an amenable number.

816673077 is a deficient number, since it is larger than the sum of its proper divisors (505713483).

816673077 is a wasteful number, since it uses less digits than its factorization.

816673077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5250 (or 5244 counting only the distinct ones).

The product of its (nonzero) digits is 296352, while the sum is 45.

The square root of 816673077 is about 28577.4924897199. The cubic root of 816673077 is about 934.7226061880.

The spelling of 816673077 in words is "eight hundred sixteen million, six hundred seventy-three thousand, seventy-seven".