812396193 has 16 divisors (see below), whose sum is σ = 1258920960. Its totient is φ = 456357456.

The previous prime is 812396191. The next prime is 812396219. The reversal of 812396193 is 391693218.

It is not a de Polignac number, because 812396193 - 2¹ = 812396191 is a prime.

It is not an unprimeable number, because it can be changed into a prime (812396191) 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 15 ways as a sum of consecutive naturals, for example, 326605 + ... + 329082.

It is an arithmetic number, because the mean of its divisors is an integer number (78682560).

Almost surely, 2^812396193 is an apocalyptic number.

It is an amenable number.

812396193 is a deficient number, since it is larger than the sum of its proper divisors (446524767).

812396193 is a wasteful number, since it uses less digits than its factorization.

812396193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655756.

The product of its digits is 69984, while the sum is 42.

The square root of 812396193 is about 28502.5646740780. The cubic root of 812396193 is about 933.0880479440.

The spelling of 812396193 in words is "eight hundred twelve million, three hundred ninety-six thousand, one hundred ninety-three".