4216523 has 2 divisors, whose sum is σ = 4216524. Its totient is φ = 4216522.

The previous prime is 4216517. The next prime is 4216573. The reversal of 4216523 is 3256124.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4216523 - 2⁴ = 4216507 is a prime.

It is not a weakly prime, because it can be changed into another prime (4216573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2108261 + 2108262.

It is an arithmetic number, because the mean of its divisors is an integer number (2108262).

Almost surely, 2^4216523 is an apocalyptic number.

4216523 is a deficient number, since it is larger than the sum of its proper divisors (1).

4216523 is an equidigital number, since it uses as much as digits as its factorization.

4216523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440, while the sum is 23.

The square root of 4216523 is about 2053.4173954654. The cubic root of 4216523 is about 161.5541645936.

The spelling of 4216523 in words is "four million, two hundred sixteen thousand, five hundred twenty-three".