3223664641 has 4 divisors (see below), whose sum is σ = 3226681300. Its totient is φ = 3220647984.

The previous prime is 3223664573. The next prime is 3223664651. The reversal of 3223664641 is 1464663223.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1464663223 = 14143 ⋅103561.

It can be written as a sum of positive squares in 2 ways, for example, as 1319215041 + 1904449600 = 36321^2 + 43640^2 .

It is a cyclic number.

It is not a de Polignac number, because 3223664641 - 2¹⁷ = 3223533569 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3223664641.

It is not an unprimeable number, because it can be changed into a prime (3223664651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1506726 + ... + 1508863.

It is an arithmetic number, because the mean of its divisors is an integer number (806670325).

Almost surely, 2^3223664641 is an apocalyptic number.

It is an amenable number.

3223664641 is a deficient number, since it is larger than the sum of its proper divisors (3016659).

3223664641 is a wasteful number, since it uses less digits than its factorization.

3223664641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3016658.

The product of its digits is 124416, while the sum is 37.

The square root of 3223664641 is about 56777.3250602738. The cubic root of 3223664641 is about 1477.2362350300.

The spelling of 3223664641 in words is "three billion, two hundred twenty-three million, six hundred sixty-four thousand, six hundred forty-one".