812546801 has 4 divisors (see below), whose sum is σ = 886414704. Its totient is φ = 738678900.

The previous prime is 812546767. The next prime is 812546821. The reversal of 812546801 is 108645218.

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 not a de Polignac number, because 812546801 - 2¹⁰ = 812545777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (812546821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36933935 + ... + 36933956.

It is an arithmetic number, because the mean of its divisors is an integer number (221603676).

Almost surely, 2^812546801 is an apocalyptic number.

It is an amenable number.

812546801 is a deficient number, since it is larger than the sum of its proper divisors (73867903).

812546801 is a wasteful number, since it uses less digits than its factorization.

812546801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73867902.

The product of its (nonzero) digits is 15360, while the sum is 35.

The square root of 812546801 is about 28505.2065595042. The cubic root of 812546801 is about 933.1457052967.

The spelling of 812546801 in words is "eight hundred twelve million, five hundred forty-six thousand, eight hundred one".