811469 has 2 divisors, whose sum is σ = 811470. Its totient is φ = 811468.

The previous prime is 811457. The next prime is 811493. The reversal of 811469 is 964118.

811469 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 697225 + 114244 = 835^2 + 338^2 .

It is a cyclic number.

It is not a de Polignac number, because 811469 - 2¹⁶ = 745933 is a prime.

It is a super-2 number, since 2×811469² = 1316963875922, which contains 22 as substring.

It is a Chen prime.

It is equal to p₆₄₇₉₃ and since 811469 and 64793 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (811429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 405734 + 405735.

It is an arithmetic number, because the mean of its divisors is an integer number (405735).

2⁸¹¹⁴⁶⁹ is an apocalyptic number.

It is an amenable number.

811469 is a deficient number, since it is larger than the sum of its proper divisors (1).

811469 is an equidigital number, since it uses as much as digits as its factorization.

811469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 29.

The square root of 811469 is about 900.8157414255. The cubic root of 811469 is about 93.2732933015.

The spelling of 811469 in words is "eight hundred eleven thousand, four hundred sixty-nine".