811890041 has 8 divisors (see below), whose sum is σ = 859123584. Its totient is φ = 765651040.

The previous prime is 811890019. The next prime is 811890043. The reversal of 811890041 is 140098118.

811890041 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 811890041 - 2¹⁸ = 811627897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (811890043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246956 + ... + 250221.

It is an arithmetic number, because the mean of its divisors is an integer number (107390448).

Almost surely, 2^811890041 is an apocalyptic number.

It is an amenable number.

811890041 is a deficient number, since it is larger than the sum of its proper divisors (47233543).

811890041 is a wasteful number, since it uses less digits than its factorization.

811890041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497271.

The product of its (nonzero) digits is 2304, while the sum is 32.

The square root of 811890041 is about 28493.6842300184. The cubic root of 811890041 is about 932.8942252325.

The spelling of 811890041 in words is "eight hundred eleven million, eight hundred ninety thousand, forty-one".