3640667227 has 4 divisors (see below), whose sum is σ = 3640830336. Its totient is φ = 3640504120.

The previous prime is 3640667203. The next prime is 3640667267. The reversal of 3640667227 is 7227660463.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3640667227 - 2⁷ = 3640667099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3640667267) 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, 41524 + ... + 94897.

It is an arithmetic number, because the mean of its divisors is an integer number (910207584).

Almost surely, 2^3640667227 is an apocalyptic number.

3640667227 is a deficient number, since it is larger than the sum of its proper divisors (163109).

3640667227 is a wasteful number, since it uses less digits than its factorization.

3640667227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163108.

The product of its (nonzero) digits is 508032, while the sum is 43.

The square root of 3640667227 is about 60337.9418525359. The cubic root of 3640667227 is about 1538.3683211288.

It can be divided in two parts, 364066 and 7227, that added together give a 5-th power (371293 = 13⁵).

The spelling of 3640667227 in words is "three billion, six hundred forty million, six hundred sixty-seven thousand, two hundred twenty-seven".