4187213 has 2 divisors, whose sum is σ = 4187214. Its totient is φ = 4187212.

The previous prime is 4187189. The next prime is 4187233. The reversal of 4187213 is 3127814.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3636649 + 550564 = 1907^2 + 742^2 .

It is a cyclic number.

It is not a de Polignac number, because 4187213 - 2¹⁸ = 3925069 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4187233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2093606 + 2093607.

It is an arithmetic number, because the mean of its divisors is an integer number (2093607).

Almost surely, 2^4187213 is an apocalyptic number.

It is an amenable number.

4187213 is a deficient number, since it is larger than the sum of its proper divisors (1).

4187213 is an equidigital number, since it uses as much as digits as its factorization.

4187213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1344, while the sum is 26.

The square root of 4187213 is about 2046.2680665055. The cubic root of 4187213 is about 161.1789607558.

The spelling of 4187213 in words is "four million, one hundred eighty-seven thousand, two hundred thirteen".