805083887 has 2 divisors, whose sum is σ = 805083888. Its totient is φ = 805083886.

The previous prime is 805083847. The next prime is 805083907. The reversal of 805083887 is 788380508.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 805083887 - 2⁶ = 805083823 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (805083847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402541943 + 402541944.

It is an arithmetic number, because the mean of its divisors is an integer number (402541944).

Almost surely, 2^805083887 is an apocalyptic number.

805083887 is a deficient number, since it is larger than the sum of its proper divisors (1).

805083887 is an equidigital number, since it uses as much as digits as its factorization.

805083887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 430080, while the sum is 47.

The square root of 805083887 is about 28374.0001938394. Note that the first 3 decimals coincide. The cubic root of 805083887 is about 930.2800586389.

The spelling of 805083887 in words is "eight hundred five million, eighty-three thousand, eight hundred eighty-seven".