3731223 has 4 divisors (see below), whose sum is σ = 4974968. Its totient is φ = 2487480.

The previous prime is 3731213. The next prime is 3731237. The reversal of 3731223 is 3221373.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3221373 = 3 ⋅1073791.

It is not a de Polignac number, because 3731223 - 2⁴ = 3731207 is a prime.

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3731223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3731213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 621868 + ... + 621873.

It is an arithmetic number, because the mean of its divisors is an integer number (1243742).

Almost surely, 2^3731223 is an apocalyptic number.

3731223 is a deficient number, since it is larger than the sum of its proper divisors (1243745).

3731223 is a wasteful number, since it uses less digits than its factorization.

3731223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1243744.

The product of its digits is 756, while the sum is 21.

The square root of 3731223 is about 1931.6373883315. The cubic root of 3731223 is about 155.1018823758.

Adding to 3731223 its reverse (3221373), we get a palindrome (6952596).

It can be divided in two parts, 373 and 1223, that added together give a triangular number (1596 = T₅₆).

The spelling of 3731223 in words is "three million, seven hundred thirty-one thousand, two hundred twenty-three".