3731222 has 16 divisors (see below), whose sum is σ = 6303744. Its totient is φ = 1641000.

The previous prime is 3731213. The next prime is 3731237. The reversal of 3731222 is 2221373.

It is a super-2 number, since 2×3731222² = 27844035226568, which contains 22 as substring.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 3731194 and 3731203.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2054 + ... + 3417.

It is an arithmetic number, because the mean of its divisors is an integer number (393984).

Almost surely, 2^3731222 is an apocalyptic number.

3731222 is a deficient number, since it is larger than the sum of its proper divisors (2572522).

3731222 is a wasteful number, since it uses less digits than its factorization.

3731222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5515.

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

The square root of 3731222 is about 1931.6371294837. The cubic root of 3731222 is about 155.1018685196.

Adding to 3731222 its reverse (2221373), we get a palindrome (5952595).

The spelling of 3731222 in words is "three million, seven hundred thirty-one thousand, two hundred twenty-two".