850247 has 2 divisors, whose sum is σ = 850248. Its totient is φ = 850246.

The previous prime is 850243. The next prime is 850253. The reversal of 850247 is 742058.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 850247 - 2² = 850243 is a prime.

It is a super-2 number, since 2×850247² = 1445839922018, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (850243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 425123 + 425124.

It is an arithmetic number, because the mean of its divisors is an integer number (425124).

2⁸⁵⁰²⁴⁷ is an apocalyptic number.

850247 is a deficient number, since it is larger than the sum of its proper divisors (1).

850247 is an equidigital number, since it uses as much as digits as its factorization.

850247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 850247 is about 922.0883905570. The cubic root of 850247 is about 94.7359983302.

The spelling of 850247 in words is "eight hundred fifty thousand, two hundred forty-seven".