3308981 has 4 divisors (see below), whose sum is σ = 3563532. Its totient is φ = 3054432.

The previous prime is 3308959. The next prime is 3308989. The reversal of 3308981 is 1898033.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1540081 + 1768900 = 1241^2 + 1330^2 .

It is a cyclic number.

It is not a de Polignac number, because 3308981 - 2⁶ = 3308917 is a prime.

It is a super-2 number, since 2×3308981² = 21898710516722, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3308989) 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, 127256 + ... + 127281.

It is an arithmetic number, because the mean of its divisors is an integer number (890883).

Almost surely, 2^3308981 is an apocalyptic number.

It is an amenable number.

3308981 is a deficient number, since it is larger than the sum of its proper divisors (254551).

3308981 is a wasteful number, since it uses less digits than its factorization.

3308981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254550.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 3308981 is about 1819.0604717821. The cubic root of 3308981 is about 149.0154931865.

The spelling of 3308981 in words is "three million, three hundred eight thousand, nine hundred eighty-one".