850800287 has 2 divisors, whose sum is σ = 850800288. Its totient is φ = 850800286.

The previous prime is 850800271. The next prime is 850800317. The reversal of 850800287 is 782008058.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 850800287 - 2⁴ = 850800271 is a prime.

It is a super-2 number, since 2×850800287² = 1447722256718564738, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 850800287.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (850802287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 425400143 + 425400144.

It is an arithmetic number, because the mean of its divisors is an integer number (425400144).

Almost surely, 2^850800287 is an apocalyptic number.

850800287 is a deficient number, since it is larger than the sum of its proper divisors (1).

850800287 is an equidigital number, since it uses as much as digits as its factorization.

850800287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35840, while the sum is 38.

The square root of 850800287 is about 29168.4810540419. The cubic root of 850800287 is about 947.5654327403.

The spelling of 850800287 in words is "eight hundred fifty million, eight hundred thousand, two hundred eighty-seven".