3325681 has 2 divisors, whose sum is σ = 3325682. Its totient is φ = 3325680.

The previous prime is 3325657. The next prime is 3325687. The reversal of 3325681 is 1865233.

It is the 745-th star number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1677025 + 1648656 = 1295^2 + 1284^2 .

It is an emirp because it is prime and its reverse (1865233) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3325681 - 2¹¹ = 3323633 is a prime.

It is a super-2 number, since 2×3325681² = 22120308227522, which contains 22 as substring.

It is a Chen prime.

3325681 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (3325687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1662840 + 1662841.

It is an arithmetic number, because the mean of its divisors is an integer number (1662841).

Almost surely, 2^3325681 is an apocalyptic number.

It is an amenable number.

3325681 is a deficient number, since it is larger than the sum of its proper divisors (1).

3325681 is an equidigital number, since it uses as much as digits as its factorization.

3325681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 28.

The square root of 3325681 is about 1823.6449764140. The cubic root of 3325681 is about 149.2657599561.

The spelling of 3325681 in words is "three million, three hundred twenty-five thousand, six hundred eighty-one".