854800087 has 2 divisors, whose sum is σ = 854800088. Its totient is φ = 854800086.

The previous prime is 854800049. The next prime is 854800109. The reversal of 854800087 is 780008458.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 854800087 - 2²³ = 846411479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (854800007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427400043 + 427400044.

It is an arithmetic number, because the mean of its divisors is an integer number (427400044).

Almost surely, 2^854800087 is an apocalyptic number.

854800087 is a deficient number, since it is larger than the sum of its proper divisors (1).

854800087 is an equidigital number, since it uses as much as digits as its factorization.

854800087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 71680, while the sum is 40.

The square root of 854800087 is about 29236.9643944100. The cubic root of 854800087 is about 949.0480166155.

The spelling of 854800087 in words is "eight hundred fifty-four million, eight hundred thousand, eighty-seven".