811288873 has 8 divisors (see below), whose sum is σ = 826832448. Its totient is φ = 795892944.

The previous prime is 811288859. The next prime is 811288883. The reversal of 811288873 is 378882118.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 811288873 - 2¹⁷ = 811157801 is a prime.

It is a super-2 number, since 2×811288873² = 1316379270907220258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (811288823) 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 7 ways as a sum of consecutive naturals, for example, 25786 + ... + 47827.

It is an arithmetic number, because the mean of its divisors is an integer number (103354056).

Almost surely, 2^811288873 is an apocalyptic number.

It is an amenable number.

811288873 is a deficient number, since it is larger than the sum of its proper divisors (15543575).

811288873 is a wasteful number, since it uses less digits than its factorization.

811288873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73823.

The product of its digits is 172032, while the sum is 46.

The square root of 811288873 is about 28483.1331317325. The cubic root of 811288873 is about 932.6639129954.

The spelling of 811288873 in words is "eight hundred eleven million, two hundred eighty-eight thousand, eight hundred seventy-three".