3213994909 has 2 divisors, whose sum is σ = 3213994910. Its totient is φ = 3213994908.

The previous prime is 3213994897. The next prime is 3213994921. The reversal of 3213994909 is 9094993123.

It is a balanced prime because it is at equal distance from previous prime (3213994897) and next prime (3213994921).

It can be written as a sum of positive squares in only one way, i.e., 2268616900 + 945378009 = 47630^2 + 30747^2 .

It is a cyclic number.

It is not a de Polignac number, because 3213994909 - 2³¹ = 1066511261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3213991909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1606997454 + 1606997455.

It is an arithmetic number, because the mean of its divisors is an integer number (1606997455).

Almost surely, 2^3213994909 is an apocalyptic number.

It is an amenable number.

3213994909 is a deficient number, since it is larger than the sum of its proper divisors (1).

3213994909 is an equidigital number, since it uses as much as digits as its factorization.

3213994909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 472392, while the sum is 49.

The square root of 3213994909 is about 56692.1062318203. The cubic root of 3213994909 is about 1475.7577122358.

The spelling of 3213994909 in words is "three billion, two hundred thirteen million, nine hundred ninety-four thousand, nine hundred nine".