812043673 has 4 divisors (see below), whose sum is σ = 928049920. Its totient is φ = 696037428.

The previous prime is 812043643. The next prime is 812043689. The reversal of 812043673 is 376340218.

It is a happy number.

812043673 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-812043673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (812043623) 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, 58003113 + ... + 58003126.

It is an arithmetic number, because the mean of its divisors is an integer number (232012480).

Almost surely, 2^812043673 is an apocalyptic number.

It is an amenable number.

812043673 is a deficient number, since it is larger than the sum of its proper divisors (116006247).

812043673 is a wasteful number, since it uses less digits than its factorization.

812043673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116006246.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 812043673 is about 28496.3799981682. The cubic root of 812043673 is about 932.9530646315.

The spelling of 812043673 in words is "eight hundred twelve million, forty-three thousand, six hundred seventy-three".