800086109 has 2 divisors, whose sum is σ = 800086110. Its totient is φ = 800086108.

The previous prime is 800086103. The next prime is 800086117. The reversal of 800086109 is 901680008.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 558376900 + 241709209 = 23630^2 + 15547^2 .

It is a cyclic number.

It is not a de Polignac number, because 800086109 - 2¹² = 800082013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (800086103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400043054 + 400043055.

It is an arithmetic number, because the mean of its divisors is an integer number (400043055).

Almost surely, 2^800086109 is an apocalyptic number.

It is an amenable number.

800086109 is a deficient number, since it is larger than the sum of its proper divisors (1).

800086109 is an equidigital number, since it uses as much as digits as its factorization.

800086109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 800086109 is about 28285.7934129485. The cubic root of 800086109 is about 928.3510724087.

The spelling of 800086109 in words is "eight hundred million, eighty-six thousand, one hundred nine".