3223631 has 2 divisors, whose sum is σ = 3223632. Its totient is φ = 3223630.

The previous prime is 3223621. The next prime is 3223663. The reversal of 3223631 is 1363223.

It is a weak prime.

It is an emirp because it is prime and its reverse (1363223) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3223631 - 2⁶ = 3223567 is a prime.

It is a super-2 number, since 2×3223631² = 20783593648322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3223621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1611815 + 1611816.

It is an arithmetic number, because the mean of its divisors is an integer number (1611816).

Almost surely, 2^3223631 is an apocalyptic number.

3223631 is a deficient number, since it is larger than the sum of its proper divisors (1).

3223631 is an equidigital number, since it uses as much as digits as its factorization.

3223631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648, while the sum is 20.

The square root of 3223631 is about 1795.4472980291. The cubic root of 3223631 is about 147.7231096377.

Adding to 3223631 its reverse (1363223), we get a palindrome (4586854).

The spelling of 3223631 in words is "three million, two hundred twenty-three thousand, six hundred thirty-one".