805084823 has 2 divisors, whose sum is σ = 805084824. Its totient is φ = 805084822.

The previous prime is 805084781. The next prime is 805084831. The reversal of 805084823 is 328480508.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-805084823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (805084843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402542411 + 402542412.

It is an arithmetic number, because the mean of its divisors is an integer number (402542412).

Almost surely, 2^805084823 is an apocalyptic number.

805084823 is a deficient number, since it is larger than the sum of its proper divisors (1).

805084823 is an equidigital number, since it uses as much as digits as its factorization.

805084823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 61440, while the sum is 38.

The square root of 805084823 is about 28374.0166878079. The cubic root of 805084823 is about 930.2804191570.

The spelling of 805084823 in words is "eight hundred five million, eighty-four thousand, eight hundred twenty-three".