810833429 has 12 divisors (see below), whose sum is σ = 968708844. Its totient is φ = 676214784.

The previous prime is 810833389. The next prime is 810833431. The reversal of 810833429 is 924338018.

It can be written as a sum of positive squares in 2 ways, for example, as 457318225 + 353515204 = 21385^2 + 18802^2 .

It is a de Polignac number, because none of the positive numbers 2^k-810833429 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 810833392 and 810833401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (810833449) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 221804 + ... + 225429.

It is an arithmetic number, because the mean of its divisors is an integer number (80725737).

Almost surely, 2^810833429 is an apocalyptic number.

It is an amenable number.

810833429 is a deficient number, since it is larger than the sum of its proper divisors (157875415).

810833429 is a wasteful number, since it uses less digits than its factorization.

810833429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447284 (or 447277 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 810833429 is about 28475.1370321549. The cubic root of 810833429 is about 932.4893530207.

The spelling of 810833429 in words is "eight hundred ten million, eight hundred thirty-three thousand, four hundred twenty-nine".