3722213 has 4 divisors (see below), whose sum is σ = 4060608. Its totient is φ = 3383820.

The previous prime is 3722207. The next prime is 3722219. The reversal of 3722213 is 3122273.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (3722207) and next prime (3722219).

It is not a de Polignac number, because 3722213 - 2⁶ = 3722149 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3722219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169181 + ... + 169202.

It is an arithmetic number, because the mean of its divisors is an integer number (1015152).

Almost surely, 2^3722213 is an apocalyptic number.

It is an amenable number.

3722213 is a deficient number, since it is larger than the sum of its proper divisors (338395).

3722213 is a wasteful number, since it uses less digits than its factorization.

3722213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338394.

The product of its digits is 504, while the sum is 20.

The square root of 3722213 is about 1929.3037604276. The cubic root of 3722213 is about 154.9769372554.

Adding to 3722213 its reverse (3122273), we get a palindrome (6844486).

The spelling of 3722213 in words is "three million, seven hundred twenty-two thousand, two hundred thirteen".