810730001 has 2 divisors, whose sum is σ = 810730002. Its totient is φ = 810730000.

The previous prime is 810729961. The next prime is 810730021. The reversal of 810730001 is 100037018.

It is an a-pointer prime, because the next prime (810730021) can be obtained adding 810730001 to its sum of digits (20).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 772784401 + 37945600 = 27799^2 + 6160^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-810730001 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (810730021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 405365000 + 405365001.

It is an arithmetic number, because the mean of its divisors is an integer number (405365001).

Almost surely, 2^810730001 is an apocalyptic number.

It is an amenable number.

810730001 is a deficient number, since it is larger than the sum of its proper divisors (1).

810730001 is an equidigital number, since it uses as much as digits as its factorization.

810730001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 810730001 is about 28473.3208635733. The cubic root of 810730001 is about 932.4497026205.

Adding to 810730001 its reverse (100037018), we get a palindrome (910767019).

The spelling of 810730001 in words is "eight hundred ten million, seven hundred thirty thousand, one".