833420217 has 32 divisors (see below), whose sum is σ = 1299558400. Its totient is φ = 465274368.

The previous prime is 833420207. The next prime is 833420239. The reversal of 833420217 is 712024338.

It is not a de Polignac number, because 833420217 - 2¹⁰ = 833419193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (833420207) 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 31 ways as a sum of consecutive naturals, for example, 158334 + ... + 163512.

It is an arithmetic number, because the mean of its divisors is an integer number (40611200).

Almost surely, 2^833420217 is an apocalyptic number.

It is an amenable number.

833420217 is a deficient number, since it is larger than the sum of its proper divisors (466138183).

833420217 is a wasteful number, since it uses less digits than its factorization.

833420217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5365.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 833420217 is about 28869.0182895089. The cubic root of 833420217 is about 941.0687320088.

The spelling of 833420217 in words is "eight hundred thirty-three million, four hundred twenty thousand, two hundred seventeen".