811054439 has 8 divisors (see below), whose sum is σ = 873678960. Its totient is φ = 748463616.

The previous prime is 811054423. The next prime is 811054459. The reversal of 811054439 is 934450118.

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 811054439 - 2⁴ = 811054423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 811054399 and 811054408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (811054459) 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, 65927 + ... + 77255.

It is an arithmetic number, because the mean of its divisors is an integer number (109209870).

Almost surely, 2^811054439 is an apocalyptic number.

811054439 is a deficient number, since it is larger than the sum of its proper divisors (62624521).

811054439 is a wasteful number, since it uses less digits than its factorization.

811054439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16849.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 811054439 is about 28479.0175216773. The cubic root of 811054439 is about 932.5740686325.

The spelling of 811054439 in words is "eight hundred eleven million, fifty-four thousand, four hundred thirty-nine".