3216293449 has 2 divisors, whose sum is σ = 3216293450. Its totient is φ = 3216293448.

The previous prime is 3216293429. The next prime is 3216293453. The reversal of 3216293449 is 9443926123.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3140481600 + 75811849 = 56040^2 + 8707^2 .

It is a cyclic number.

It is not a de Polignac number, because 3216293449 - 2⁵ = 3216293417 is a prime.

It is not a weakly prime, because it can be changed into another prime (3216293429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1608146724 + 1608146725.

It is an arithmetic number, because the mean of its divisors is an integer number (1608146725).

Almost surely, 2^3216293449 is an apocalyptic number.

It is an amenable number.

3216293449 is a deficient number, since it is larger than the sum of its proper divisors (1).

3216293449 is an equidigital number, since it uses as much as digits as its factorization.

3216293449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 279936, while the sum is 43.

The square root of 3216293449 is about 56712.3747430841. The cubic root of 3216293449 is about 1476.1094323343.

The spelling of 3216293449 in words is "three billion, two hundred sixteen million, two hundred ninety-three thousand, four hundred forty-nine".