852217843 has 2 divisors, whose sum is σ = 852217844. Its totient is φ = 852217842.

The previous prime is 852217831. The next prime is 852217853. The reversal of 852217843 is 348712258.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 852217843 - 2¹³ = 852209651 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 852217796 and 852217805.

It is not a weakly prime, because it can be changed into another prime (852217853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 426108921 + 426108922.

It is an arithmetic number, because the mean of its divisors is an integer number (426108922).

Almost surely, 2^852217843 is an apocalyptic number.

852217843 is a deficient number, since it is larger than the sum of its proper divisors (1).

852217843 is an equidigital number, since it uses as much as digits as its factorization.

852217843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 107520, while the sum is 40.

The square root of 852217843 is about 29192.7703892591. The cubic root of 852217843 is about 948.0914009656.

The spelling of 852217843 in words is "eight hundred fifty-two million, two hundred seventeen thousand, eight hundred forty-three".