852805437 has 16 divisors (see below), whose sum is σ = 1260782400. Its totient is φ = 508377600.

The previous prime is 852805417. The next prime is 852805439. The reversal of 852805437 is 734508258.

It is not a de Polignac number, because 852805437 - 2¹⁰ = 852804413 is a prime.

It is a super-2 number, since 2×852805437² = 1454554226753521938, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (852805439) 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, 209812 + ... + 213837.

It is an arithmetic number, because the mean of its divisors is an integer number (78798900).

Almost surely, 2^852805437 is an apocalyptic number.

It is an amenable number.

852805437 is a deficient number, since it is larger than the sum of its proper divisors (407976963).

852805437 is a wasteful number, since it uses less digits than its factorization.

852805437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423724.

The product of its (nonzero) digits is 268800, while the sum is 42.

The square root of 852805437 is about 29202.8326879431. The cubic root of 852805437 is about 948.3092501286.

The spelling of 852805437 in words is "eight hundred fifty-two million, eight hundred five thousand, four hundred thirty-seven".