3481381 has 4 divisors (see below), whose sum is σ = 3485664. Its totient is φ = 3477100.

The previous prime is 3481339. The next prime is 3481391. The reversal of 3481381 is 1831843.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3481381 is a prime.

It is a super-2 number, since 2×3481381² = 24240027334322, which contains 22 as substring.

It is a Duffinian number.

3481381 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3481301) 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, 505 + ... + 2686.

It is an arithmetic number, because the mean of its divisors is an integer number (871416).

Almost surely, 2^3481381 is an apocalyptic number.

It is an amenable number.

3481381 is a deficient number, since it is larger than the sum of its proper divisors (4283).

3481381 is a wasteful number, since it uses less digits than its factorization.

3481381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4282.

The product of its digits is 2304, while the sum is 28.

The square root of 3481381 is about 1865.8459207555. The cubic root of 3481381 is about 151.5597400071.

The spelling of 3481381 in words is "three million, four hundred eighty-one thousand, three hundred eighty-one".