3771381 has 8 divisors (see below), whose sum is σ = 5092480. Its totient is φ = 2482272.

The previous prime is 3771377. The next prime is 3771407. The reversal of 3771381 is 1831773.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3771381 - 2² = 3771377 is a prime.

It is a super-2 number, since 2×3771381² = 28446629294322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3771281) 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, 7720 + ... + 8193.

It is an arithmetic number, because the mean of its divisors is an integer number (636560).

Almost surely, 2^3771381 is an apocalyptic number.

It is an amenable number.

3771381 is a deficient number, since it is larger than the sum of its proper divisors (1321099).

3771381 is a wasteful number, since it uses less digits than its factorization.

3771381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15995.

The product of its digits is 3528, while the sum is 30.

The square root of 3771381 is about 1942.0043769261. The cubic root of 3771381 is about 155.6563358457.

The spelling of 3771381 in words is "three million, seven hundred seventy-one thousand, three hundred eighty-one".