811928343 has 16 divisors (see below), whose sum is σ = 1089425376. Its totient is φ = 537868800.

The previous prime is 811928321. The next prime is 811928357. The reversal of 811928343 is 343829118.

It is not a de Polignac number, because 811928343 - 2¹² = 811924247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (811928743) 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, 489171 + ... + 490827.

It is an arithmetic number, because the mean of its divisors is an integer number (68089086).

Almost surely, 2^811928343 is an apocalyptic number.

811928343 is a deficient number, since it is larger than the sum of its proper divisors (277497033).

811928343 is a wasteful number, since it uses less digits than its factorization.

811928343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2594.

The product of its digits is 41472, while the sum is 39.

The square root of 811928343 is about 28494.3563359484. The cubic root of 811928343 is about 932.9088951799.

The spelling of 811928343 in words is "eight hundred eleven million, nine hundred twenty-eight thousand, three hundred forty-three".