805039427 has 2 divisors, whose sum is σ = 805039428. Its totient is φ = 805039426.

The previous prime is 805039397. The next prime is 805039439. The reversal of 805039427 is 724930508.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 805039427 - 2⁶ = 805039363 is a prime.

It is a super-3 number, since 3×805039427³ (a number of 28 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (805039457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402519713 + 402519714.

It is an arithmetic number, because the mean of its divisors is an integer number (402519714).

Almost surely, 2^805039427 is an apocalyptic number.

805039427 is a deficient number, since it is larger than the sum of its proper divisors (1).

805039427 is an equidigital number, since it uses as much as digits as its factorization.

805039427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 805039427 is about 28373.2167192936. The cubic root of 805039427 is about 930.2629337101.

The spelling of 805039427 in words is "eight hundred five million, thirty-nine thousand, four hundred twenty-seven".