810663073 has 8 divisors (see below), whose sum is σ = 886000896. Its totient is φ = 735598800.

The previous prime is 810663041. The next prime is 810663079. The reversal of 810663073 is 370366018.

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

It is a cyclic number.

It is not a de Polignac number, because 810663073 - 2⁵ = 810663041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (810663079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62161 + ... + 74062.

It is an arithmetic number, because the mean of its divisors is an integer number (110750112).

Almost surely, 2^810663073 is an apocalyptic number.

It is an amenable number.

810663073 is a deficient number, since it is larger than the sum of its proper divisors (75337823).

810663073 is a wasteful number, since it uses less digits than its factorization.

810663073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136775.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 810663073 is about 28472.1455636908. The cubic root of 810663073 is about 932.4240431486.

The spelling of 810663073 in words is "eight hundred ten million, six hundred sixty-three thousand, seventy-three".