812441831 has 8 divisors (see below), whose sum is σ = 841686144. Its totient is φ = 783387360.

The previous prime is 812441821. The next prime is 812441837. The reversal of 812441831 is 138144218.

It is a happy number.

812441831 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 812441831 - 2¹⁰ = 812440807 is a prime.

It is a super-2 number, since 2×812441831² = 1320123457517265122, 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 (812441837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38720 + ... + 55893.

It is an arithmetic number, because the mean of its divisors is an integer number (105210768).

Almost surely, 2^812441831 is an apocalyptic number.

812441831 is a deficient number, since it is larger than the sum of its proper divisors (29244313).

812441831 is a wasteful number, since it uses less digits than its factorization.

812441831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94921.

The product of its digits is 6144, while the sum is 32.

The square root of 812441831 is about 28503.3652574569. The cubic root of 812441831 is about 933.1055203199.

The spelling of 812441831 in words is "eight hundred twelve million, four hundred forty-one thousand, eight hundred thirty-one".