801054217 has 2 divisors, whose sum is σ = 801054218. Its totient is φ = 801054216.

The previous prime is 801054173. The next prime is 801054223. The reversal of 801054217 is 712450108.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 419594256 + 381459961 = 20484^2 + 19531^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-801054217 is a prime.

It is not a weakly prime, because it can be changed into another prime (801054017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400527108 + 400527109.

It is an arithmetic number, because the mean of its divisors is an integer number (400527109).

Almost surely, 2^801054217 is an apocalyptic number.

It is an amenable number.

801054217 is a deficient number, since it is larger than the sum of its proper divisors (1).

801054217 is an equidigital number, since it uses as much as digits as its factorization.

801054217 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 28.

The square root of 801054217 is about 28302.9012117133. The cubic root of 801054217 is about 928.7253578923.

The spelling of 801054217 in words is "eight hundred one million, fifty-four thousand, two hundred seventeen".