3219820609 has 4 divisors (see below), whose sum is σ = 3219970816. Its totient is φ = 3219670404.

The previous prime is 3219820601. The next prime is 3219820627. The reversal of 3219820609 is 9060289123.

It is a happy number.

3219820609 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 a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3219820609 - 2³ = 3219820601 is a prime.

It is a super-2 number, since 2×3219820609² = 20734489508282261762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3219820601) 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, 36249 + ... + 88054.

It is an arithmetic number, because the mean of its divisors is an integer number (804992704).

Almost surely, 2^3219820609 is an apocalyptic number.

It is an amenable number.

3219820609 is a deficient number, since it is larger than the sum of its proper divisors (150207).

3219820609 is a wasteful number, since it uses less digits than its factorization.

3219820609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150206.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 3219820609 is about 56743.4631389379. The cubic root of 3219820609 is about 1476.6488288118.

The spelling of 3219820609 in words is "three billion, two hundred nineteen million, eight hundred twenty thousand, six hundred nine".