850029817 has 32 divisors (see below), whose sum is σ = 1086382080. Its totient is φ = 647664192.

The previous prime is 850029799. The next prime is 850029853. The reversal of 850029817 is 718920058.

It is not a de Polignac number, because 850029817 - 2⁷ = 850029689 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 850029817.

It is not an unprimeable number, because it can be changed into a prime (850029857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2219208 + ... + 2219590.

It is an arithmetic number, because the mean of its divisors is an integer number (33949440).

Almost surely, 2^850029817 is an apocalyptic number.

It is an amenable number.

850029817 is a deficient number, since it is larger than the sum of its proper divisors (236352263).

850029817 is an equidigital number, since it uses as much as digits as its factorization.

850029817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490 (or 432 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 40.

The square root of 850029817 is about 29155.2708270734. The cubic root of 850029817 is about 947.2793134082.

The spelling of 850029817 in words is "eight hundred fifty million, twenty-nine thousand, eight hundred seventeen".