3219008465 has 4 divisors (see below), whose sum is σ = 3862810164. Its totient is φ = 2575206768.

The previous prime is 3219008459. The next prime is 3219008483. The reversal of 3219008465 is 5648009123.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 838739521 + 2380268944 = 28961^2 + 48788^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3219008465 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 321900842 + ... + 321900851.

It is an arithmetic number, because the mean of its divisors is an integer number (965702541).

Almost surely, 2^3219008465 is an apocalyptic number.

It is an amenable number.

3219008465 is a deficient number, since it is larger than the sum of its proper divisors (643801699).

3219008465 is an equidigital number, since it uses as much as digits as its factorization.

3219008465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643801698.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 3219008465 is about 56736.3064095646. The cubic root of 3219008465 is about 1476.5246653385.

The spelling of 3219008465 in words is "three billion, two hundred nineteen million, eight thousand, four hundred sixty-five".