36643227 has 4 divisors (see below), whose sum is σ = 48857640. Its totient is φ = 24428816.

The previous prime is 36643151. The next prime is 36643237. The reversal of 36643227 is 72234663.

36643227 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72234663 = 3 ⋅24078221.

It is a cyclic number.

It is not a de Polignac number, because 36643227 - 2⁷ = 36643099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (36643237) 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 3 ways as a sum of consecutive naturals, for example, 6107202 + ... + 6107207.

It is an arithmetic number, because the mean of its divisors is an integer number (12214410).

Almost surely, 2^36643227 is an apocalyptic number.

36643227 is a deficient number, since it is larger than the sum of its proper divisors (12214413).

36643227 is a wasteful number, since it uses less digits than its factorization.

36643227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12214412.

The product of its digits is 36288, while the sum is 33.

The square root of 36643227 is about 6053.3649320027. The cubic root of 36643227 is about 332.1476909790.

The spelling of 36643227 in words is "thirty-six million, six hundred forty-three thousand, two hundred twenty-seven".