850534847 has 2 divisors, whose sum is σ = 850534848. Its totient is φ = 850534846.

The previous prime is 850534813. The next prime is 850534849. The reversal of 850534847 is 748435058.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 850534847 - 2²⁰ = 849486271 is a prime.

It is a super-2 number, since 2×850534847² = 1446819051922626818, which contains 22 as substring.

Together with 850534849, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 850534798 and 850534807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (850534849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 425267423 + 425267424.

It is an arithmetic number, because the mean of its divisors is an integer number (425267424).

Almost surely, 2^850534847 is an apocalyptic number.

850534847 is a deficient number, since it is larger than the sum of its proper divisors (1).

850534847 is an equidigital number, since it uses as much as digits as its factorization.

850534847 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 537600, while the sum is 44.

The square root of 850534847 is about 29163.9305821420. The cubic root of 850534847 is about 947.4668792826.

The spelling of 850534847 in words is "eight hundred fifty million, five hundred thirty-four thousand, eight hundred forty-seven".