811004385 has 8 divisors (see below), whose sum is σ = 1297607040. Its totient is φ = 432535664.

The previous prime is 811004323. The next prime is 811004399. The reversal of 811004385 is 583400118.

811004385 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 811004385 - 2¹⁷ = 810873313 is a prime.

It is a super-2 number, since 2×811004385² = 1315456224978456450, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27033465 + ... + 27033494.

It is an arithmetic number, because the mean of its divisors is an integer number (162200880).

Almost surely, 2^811004385 is an apocalyptic number.

It is an amenable number.

811004385 is a deficient number, since it is larger than the sum of its proper divisors (486602655).

811004385 is a wasteful number, since it uses less digits than its factorization.

811004385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54066967.

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 811004385 is about 28478.1387207802. The cubic root of 811004385 is about 932.5548837211.

The spelling of 811004385 in words is "eight hundred eleven million, four thousand, three hundred eighty-five".