800057801 has 2 divisors, whose sum is σ = 800057802. Its totient is φ = 800057800.

The previous prime is 800057743. The next prime is 800057803. The reversal of 800057801 is 108750008.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 799532176 + 525625 = 28276^2 + 725^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-800057801 is a prime.

Together with 800057803, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (800057803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400028900 + 400028901.

It is an arithmetic number, because the mean of its divisors is an integer number (400028901).

Almost surely, 2^800057801 is an apocalyptic number.

It is an amenable number.

800057801 is a deficient number, since it is larger than the sum of its proper divisors (1).

800057801 is an equidigital number, since it uses as much as digits as its factorization.

800057801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2240, while the sum is 29.

The square root of 800057801 is about 28285.2930159827. The cubic root of 800057801 is about 928.3401235571.

The spelling of 800057801 in words is "eight hundred million, fifty-seven thousand, eight hundred one".