850764247 has 4 divisors (see below), whose sum is σ = 865184040. Its totient is φ = 836344456.

The previous prime is 850764221. The next prime is 850764259. The reversal of 850764247 is 742467058.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 742467058 = 2 ⋅371233529.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-850764247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (850765247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7209808 + ... + 7209925.

It is an arithmetic number, because the mean of its divisors is an integer number (216296010).

Almost surely, 2^850764247 is an apocalyptic number.

850764247 is a deficient number, since it is larger than the sum of its proper divisors (14419793).

850764247 is a wasteful number, since it uses less digits than its factorization.

850764247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14419792.

The product of its (nonzero) digits is 376320, while the sum is 43.

The square root of 850764247 is about 29167.8632573591. The cubic root of 850764247 is about 947.5520528904.

The spelling of 850764247 in words is "eight hundred fifty million, seven hundred sixty-four thousand, two hundred forty-seven".