3243261 has 12 divisors (see below), whose sum is σ = 5030592. Its totient is φ = 1853208.

The previous prime is 3243239. The next prime is 3243271. The reversal of 3243261 is 1623423.

It is a happy number.

It is not a de Polignac number, because 3243261 - 2⁶ = 3243197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3243221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10885 + ... + 11178.

It is an arithmetic number, because the mean of its divisors is an integer number (419216).

Almost surely, 2^3243261 is an apocalyptic number.

It is an amenable number.

3243261 is a deficient number, since it is larger than the sum of its proper divisors (1787331).

3243261 is a wasteful number, since it uses less digits than its factorization.

3243261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22080 (or 22073 counting only the distinct ones).

The product of its digits is 864, while the sum is 21.

The square root of 3243261 is about 1800.9056055218. The cubic root of 3243261 is about 148.0223517495.

Adding to 3243261 its reverse (1623423), we get a palindrome (4866684).

The spelling of 3243261 in words is "three million, two hundred forty-three thousand, two hundred sixty-one".