84850217 has 4 divisors (see below), whose sum is σ = 85276800. Its totient is φ = 84423636.

The previous prime is 84850211. The next prime is 84850229. The reversal of 84850217 is 71205848.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84850217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84850211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212993 + ... + 213390.

It is an arithmetic number, because the mean of its divisors is an integer number (21319200).

Almost surely, 2^84850217 is an apocalyptic number.

It is an amenable number.

84850217 is a deficient number, since it is larger than the sum of its proper divisors (426583).

84850217 is a wasteful number, since it uses less digits than its factorization.

84850217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426582.

The product of its (nonzero) digits is 17920, while the sum is 35.

The square root of 84850217 is about 9211.4177518990. The cubic root of 84850217 is about 439.4245524896.

The spelling of 84850217 in words is "eighty-four million, eight hundred fifty thousand, two hundred seventeen".