812903093 has 8 divisors (see below), whose sum is σ = 862062912. Its totient is φ = 763892416.

The previous prime is 812903081. The next prime is 812903101. The reversal of 812903093 is 390309218.

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

It is not a de Polignac number, because 812903093 - 2⁸ = 812902837 is a prime.

It is a super-2 number, since 2×812903093² = 1321622877217933298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812902093) 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 7 ways as a sum of consecutive naturals, for example, 25955 + ... + 47952.

It is an arithmetic number, because the mean of its divisors is an integer number (107757864).

Almost surely, 2^812903093 is an apocalyptic number.

It is an amenable number.

812903093 is a deficient number, since it is larger than the sum of its proper divisors (49159819).

812903093 is a wasteful number, since it uses less digits than its factorization.

812903093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74571.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 812903093 is about 28511.4554696880. The cubic root of 812903093 is about 933.2820764226.

The spelling of 812903093 in words is "eight hundred twelve million, nine hundred three thousand, ninety-three".