3216261 has 8 divisors (see below), whose sum is σ = 4304160. Its totient is φ = 2136272.

The previous prime is 3216259. The next prime is 3216277. The reversal of 3216261 is 1626123.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3216261 - 2¹ = 3216259 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3216211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 951 + ... + 2708.

It is an arithmetic number, because the mean of its divisors is an integer number (538020).

Almost surely, 2^3216261 is an apocalyptic number.

It is an amenable number.

3216261 is a deficient number, since it is larger than the sum of its proper divisors (1087899).

3216261 is a wasteful number, since it uses less digits than its factorization.

3216261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3955.

The product of its digits is 432, while the sum is 21.

The square root of 3216261 is about 1793.3937102600. The cubic root of 3216261 is about 147.6104468190.

It can be divided in two parts, 32162 and 61, that added together give a palindrome (32223).

The spelling of 3216261 in words is "three million, two hundred sixteen thousand, two hundred sixty-one".