3640851227 has 4 divisors (see below), whose sum is σ = 3920916720. Its totient is φ = 3360785736.

The previous prime is 3640851211. The next prime is 3640851241. The reversal of 3640851227 is 7221580463.

It is a happy number.

3640851227 is digitally balanced in base 3, 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: 7221580463 = 397 ⋅18190379.

It is a cyclic number.

It is not a de Polignac number, because 3640851227 - 2⁴ = 3640851211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3640851727) 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 3 ways as a sum of consecutive naturals, for example, 140032727 + ... + 140032752.

It is an arithmetic number, because the mean of its divisors is an integer number (980229180).

Almost surely, 2^3640851227 is an apocalyptic number.

3640851227 is a deficient number, since it is larger than the sum of its proper divisors (280065493).

3640851227 is a wasteful number, since it uses less digits than its factorization.

3640851227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280065492.

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 3640851227 is about 60339.4665786830. The cubic root of 3640851227 is about 1538.3942371661.

The spelling of 3640851227 in words is "three billion, six hundred forty million, eight hundred fifty-one thousand, two hundred twenty-seven".