852659391 has 16 divisors (see below), whose sum is σ = 1155307104. Its totient is φ = 559294464.

The previous prime is 852659359. The next prime is 852659393. The reversal of 852659391 is 193956258.

It is a happy number.

It is not a de Polignac number, because 852659391 - 2⁵ = 852659359 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 852659391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (852659393) 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 15 ways as a sum of consecutive naturals, for example, 41875 + ... + 58811.

It is an arithmetic number, because the mean of its divisors is an integer number (72206694).

Almost surely, 2^852659391 is an apocalyptic number.

852659391 is a deficient number, since it is larger than the sum of its proper divisors (302647713).

852659391 is a wasteful number, since it uses less digits than its factorization.

852659391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17210.

The product of its digits is 583200, while the sum is 48.

The square root of 852659391 is about 29200.3320357834. The cubic root of 852659391 is about 948.2551132475.

The spelling of 852659391 in words is "eight hundred fifty-two million, six hundred fifty-nine thousand, three hundred ninety-one".