3351981 has 8 divisors (see below), whose sum is σ = 4532544. Its totient is φ = 2203040.

The previous prime is 3351949. The next prime is 3352003. The reversal of 3351981 is 1891533.

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 3351981 - 2⁵ = 3351949 is a prime.

It is a super-2 number, since 2×3351981² = 22471553248722, which contains 22 as substring.

3351981 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3350981) 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, 7656 + ... + 8081.

It is an arithmetic number, because the mean of its divisors is an integer number (566568).

Almost surely, 2^3351981 is an apocalyptic number.

It is an amenable number.

3351981 is a deficient number, since it is larger than the sum of its proper divisors (1180563).

3351981 is a wasteful number, since it uses less digits than its factorization.

3351981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15811.

The product of its digits is 3240, while the sum is 30.

The square root of 3351981 is about 1830.8416097522. The cubic root of 3351981 is about 149.6581995189.

The spelling of 3351981 in words is "three million, three hundred fifty-one thousand, nine hundred eighty-one".