805939601 has 2 divisors, whose sum is σ = 805939602. Its totient is φ = 805939600.

The previous prime is 805939543. The next prime is 805939613. The reversal of 805939601 is 106939508.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 527850625 + 278088976 = 22975^2 + 16676^2 .

It is a cyclic number.

It is not a de Polignac number, because 805939601 - 2²² = 801745297 is a prime.

It is not a weakly prime, because it can be changed into another prime (805932601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402969800 + 402969801.

It is an arithmetic number, because the mean of its divisors is an integer number (402969801).

Almost surely, 2^805939601 is an apocalyptic number.

It is an amenable number.

805939601 is a deficient number, since it is larger than the sum of its proper divisors (1).

805939601 is an equidigital number, since it uses as much as digits as its factorization.

805939601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 805939601 is about 28389.0753812096. The cubic root of 805939601 is about 930.6095364365.

The spelling of 805939601 in words is "eight hundred five million, nine hundred thirty-nine thousand, six hundred one".