812804007 has 4 divisors (see below), whose sum is σ = 1083738680. Its totient is φ = 541869336.

The previous prime is 812803963. The next prime is 812804011. The reversal of 812804007 is 700408218.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 812804007 - 2⁷ = 812803879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812804087) 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, 135467332 + ... + 135467337.

It is an arithmetic number, because the mean of its divisors is an integer number (270934670).

Almost surely, 2^812804007 is an apocalyptic number.

812804007 is a deficient number, since it is larger than the sum of its proper divisors (270934673).

812804007 is a wasteful number, since it uses less digits than its factorization.

812804007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270934672.

The product of its (nonzero) digits is 3584, while the sum is 30.

The square root of 812804007 is about 28509.7177642992. The cubic root of 812804007 is about 933.2441551558.

The spelling of 812804007 in words is "eight hundred twelve million, eight hundred four thousand, seven".