3241681 has 4 divisors (see below), whose sum is σ = 3329332. Its totient is φ = 3154032.

The previous prime is 3241673. The next prime is 3241699. The reversal of 3241681 is 1861423.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1861423 = 29 ⋅64187.

It can be written as a sum of positive squares in 2 ways, for example, as 2944656 + 297025 = 1716^2 + 545^2 .

It is a cyclic number.

It is not a de Polignac number, because 3241681 - 2³ = 3241673 is a prime.

It is a super-2 number, since 2×3241681² = 21016991411522, which contains 22 as substring.

It is a Duffinian number.

3241681 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3241981) 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, 43770 + ... + 43843.

It is an arithmetic number, because the mean of its divisors is an integer number (832333).

Almost surely, 2^3241681 is an apocalyptic number.

3241681 is the 1040-th hex number.

It is an amenable number.

3241681 is a deficient number, since it is larger than the sum of its proper divisors (87651).

3241681 is an equidigital number, since it uses as much as digits as its factorization.

3241681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87650.

The product of its digits is 1152, while the sum is 25.

The square root of 3241681 is about 1800.4668838943. The cubic root of 3241681 is about 147.9983107915.

It can be divided in two parts, 324 and 1681, that multiplied together give a square (544644 = 738²).

The spelling of 3241681 in words is "three million, two hundred forty-one thousand, six hundred eighty-one".