3644231 has 2 divisors, whose sum is σ = 3644232. Its totient is φ = 3644230.

The previous prime is 3644213. The next prime is 3644237. The reversal of 3644231 is 1324463.

It is a happy number.

Together with previous prime (3644213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3644231 is a prime.

It is a super-2 number, since 2×3644231² = 26560839162722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 3644197 and 3644206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3644237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1822115 + 1822116.

It is an arithmetic number, because the mean of its divisors is an integer number (1822116).

Almost surely, 2^3644231 is an apocalyptic number.

3644231 is a deficient number, since it is larger than the sum of its proper divisors (1).

3644231 is an equidigital number, since it uses as much as digits as its factorization.

3644231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 23.

The square root of 3644231 is about 1908.9869040934. The cubic root of 3644231 is about 153.8870116290.

Adding to 3644231 its reverse (1324463), we get a palindrome (4968694).

The spelling of 3644231 in words is "three million, six hundred forty-four thousand, two hundred thirty-one".