850152321 has 32 divisors (see below), whose sum is σ = 1327872000. Its totient is φ = 536089104.

The previous prime is 850152287. The next prime is 850152349. The reversal of 850152321 is 123251058.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-850152321 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (850152361) 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 31 ways as a sum of consecutive naturals, for example, 544540 + ... + 546098.

It is an arithmetic number, because the mean of its divisors is an integer number (41496000).

Almost surely, 2^850152321 is an apocalyptic number.

It is an amenable number.

850152321 is a deficient number, since it is larger than the sum of its proper divisors (477719679).

850152321 is a wasteful number, since it uses less digits than its factorization.

850152321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2650 (or 2644 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 850152321 is about 29157.3716408047. The cubic root of 850152321 is about 947.3248176671.

The spelling of 850152321 in words is "eight hundred fifty million, one hundred fifty-two thousand, three hundred twenty-one".