852217841 has 8 divisors (see below), whose sum is σ = 884965704. Its totient is φ = 820039680.

The previous prime is 852217831. The next prime is 852217843. The reversal of 852217841 is 148712258.

It can be written as a sum of positive squares in 4 ways, for example, as 75759616 + 776458225 = 8704^2 + 27865^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 852217841 - 2¹⁴ = 852201457 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 852217795 and 852217804.

It is not an unprimeable number, because it can be changed into a prime (852217843) 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 in 7 ways as a sum of consecutive naturals, for example, 139376 + ... + 145361.

It is an arithmetic number, because the mean of its divisors is an integer number (110620713).

Almost surely, 2^852217841 is an apocalyptic number.

It is an amenable number.

852217841 is a deficient number, since it is larger than the sum of its proper divisors (32747863).

852217841 is a wasteful number, since it uses less digits than its factorization.

852217841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284851.

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

The square root of 852217841 is about 29192.7703550040. The cubic root of 852217841 is about 948.0914002239.

The spelling of 852217841 in words is "eight hundred fifty-two million, two hundred seventeen thousand, eight hundred forty-one".