3216523 has 2 divisors, whose sum is σ = 3216524. Its totient is φ = 3216522.

The previous prime is 3216511. The next prime is 3216559. The reversal of 3216523 is 3256123.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3216523 - 2¹⁷ = 3085451 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 3216494 and 3216503.

It is not a weakly prime, because it can be changed into another prime (3216583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1608261 + 1608262.

It is an arithmetic number, because the mean of its divisors is an integer number (1608262).

Almost surely, 2^3216523 is an apocalyptic number.

3216523 is a deficient number, since it is larger than the sum of its proper divisors (1).

3216523 is an equidigital number, since it uses as much as digits as its factorization.

3216523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1080, while the sum is 22.

The square root of 3216523 is about 1793.4667546403. The cubic root of 3216523 is about 147.6144548775.

The spelling of 3216523 in words is "three million, two hundred sixteen thousand, five hundred twenty-three".