812332871 has 4 divisors (see below), whose sum is σ = 928380432. Its totient is φ = 696285312.

The previous prime is 812332861. The next prime is 812332903. The reversal of 812332871 is 178233218.

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

It is a cyclic number.

It is not a de Polignac number, because 812332871 - 2²² = 808138567 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812332841) 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, 58023770 + ... + 58023783.

It is an arithmetic number, because the mean of its divisors is an integer number (232095108).

Almost surely, 2^812332871 is an apocalyptic number.

812332871 is a deficient number, since it is larger than the sum of its proper divisors (116047561).

812332871 is a wasteful number, since it uses less digits than its factorization.

812332871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116047560.

The product of its digits is 16128, while the sum is 35.

The square root of 812332871 is about 28501.4538401114. The cubic root of 812332871 is about 933.0638042162.

The spelling of 812332871 in words is "eight hundred twelve million, three hundred thirty-two thousand, eight hundred seventy-one".