850339249 has 2 divisors, whose sum is σ = 850339250. Its totient is φ = 850339248.

The previous prime is 850339219. The next prime is 850339297. The reversal of 850339249 is 942933058.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 463627024 + 386712225 = 21532^2 + 19665^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-850339249 is a prime.

It is equal to p_43598374 and since 850339249 and 43598374 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (850339219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 425169624 + 425169625.

It is an arithmetic number, because the mean of its divisors is an integer number (425169625).

Almost surely, 2^850339249 is an apocalyptic number.

It is an amenable number.

850339249 is a deficient number, since it is larger than the sum of its proper divisors (1).

850339249 is an equidigital number, since it uses as much as digits as its factorization.

850339249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 233280, while the sum is 43.

The square root of 850339249 is about 29160.5769661713. The cubic root of 850339249 is about 947.3942438755.

The spelling of 850339249 in words is "eight hundred fifty million, three hundred thirty-nine thousand, two hundred forty-nine".