850742471 has 2 divisors, whose sum is σ = 850742472. Its totient is φ = 850742470.

The previous prime is 850742419. The next prime is 850742479. The reversal of 850742471 is 174247058.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 850742471 - 2¹⁰ = 850741447 is a prime.

It is a super-3 number, since 3×850742471³ (a number of 28 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (850742479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 425371235 + 425371236.

It is an arithmetic number, because the mean of its divisors is an integer number (425371236).

Almost surely, 2^850742471 is an apocalyptic number.

850742471 is a deficient number, since it is larger than the sum of its proper divisors (1).

850742471 is an equidigital number, since it uses as much as digits as its factorization.

850742471 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62720, while the sum is 38.

The square root of 850742471 is about 29167.4899674278. The cubic root of 850742471 is about 947.5439683673.

The spelling of 850742471 in words is "eight hundred fifty million, seven hundred forty-two thousand, four hundred seventy-one".