802560001 has 2 divisors, whose sum is σ = 802560002. Its totient is φ = 802560000.

The previous prime is 802559993. The next prime is 802560043. The reversal of 802560001 is 100065208.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 793886976 + 8673025 = 28176^2 + 2945^2 .

It is a cyclic number.

It is not a de Polignac number, because 802560001 - 2³ = 802559993 is a prime.

It is not a weakly prime, because it can be changed into another prime (802560061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 401280000 + 401280001.

It is an arithmetic number, because the mean of its divisors is an integer number (401280001).

Almost surely, 2^802560001 is an apocalyptic number.

It is an amenable number.

802560001 is a deficient number, since it is larger than the sum of its proper divisors (1).

802560001 is an equidigital number, since it uses as much as digits as its factorization.

802560001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 802560001 is about 28329.4899530507. The cubic root of 802560001 is about 929.3069183808.

The spelling of 802560001 in words is "eight hundred two million, five hundred sixty thousand, one".