3216374393 has 2 divisors, whose sum is σ = 3216374394. Its totient is φ = 3216374392.

The previous prime is 3216374383. The next prime is 3216374401. The reversal of 3216374393 is 3934736123.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2028331369 + 1188043024 = 45037^2 + 34468^2 .

It is an emirp because it is prime and its reverse (3934736123) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3216374393 - 2¹⁴ = 3216358009 is a prime.

It is a super-2 number, since 2×3216374393² = 20690128471892236898, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3216374393.

It is not a weakly prime, because it can be changed into another prime (3216374323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1608187196 + 1608187197.

It is an arithmetic number, because the mean of its divisors is an integer number (1608187197).

Almost surely, 2^3216374393 is an apocalyptic number.

It is an amenable number.

3216374393 is a deficient number, since it is larger than the sum of its proper divisors (1).

3216374393 is an equidigital number, since it uses as much as digits as its factorization.

3216374393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 244944, while the sum is 41.

The square root of 3216374393 is about 56713.0883747306. The cubic root of 3216374393 is about 1476.1218152425.

The spelling of 3216374393 in words is "three billion, two hundred sixteen million, three hundred seventy-four thousand, three hundred ninety-three".