36851805 has 24 divisors (see below), whose sum is σ = 64216152. Its totient is φ = 19549824.

The previous prime is 36851791. The next prime is 36851821. The reversal of 36851805 is 50815863.

It can be written as a sum of positive squares in 4 ways, for example, as 12467961 + 24383844 = 3531^2 + 4938^2 .

It is not a de Polignac number, because 36851805 - 2⁹ = 36851293 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 36851805.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6787 + ... + 10943.

It is an arithmetic number, because the mean of its divisors is an integer number (2675673).

Almost surely, 2^36851805 is an apocalyptic number.

It is an amenable number.

36851805 is a deficient number, since it is larger than the sum of its proper divisors (27364347).

36851805 is a wasteful number, since it uses less digits than its factorization.

36851805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4365 (or 4362 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 36851805 is about 6070.5687542437. The cubic root of 36851805 is about 332.7767082451.

The spelling of 36851805 in words is "thirty-six million, eight hundred fifty-one thousand, eight hundred five".