3421881 has 12 divisors (see below), whose sum is σ = 5203120. Its totient is φ = 2161080.

The previous prime is 3421877. The next prime is 3421903. The reversal of 3421881 is 1881243.

It is not a de Polignac number, because 3421881 - 2² = 3421877 is a prime.

It is a super-2 number, since 2×3421881² = 23418539156322, which contains 22 as substring.

It is a Duffinian number.

3421881 is a modest number, since divided by 1881 gives 342 as remainder.

3421881 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3421801) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9835 + ... + 10176.

Almost surely, 2^3421881 is an apocalyptic number.

It is an amenable number.

3421881 is a deficient number, since it is larger than the sum of its proper divisors (1781239).

3421881 is a wasteful number, since it uses less digits than its factorization.

3421881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20036 (or 20033 counting only the distinct ones).

The product of its digits is 1536, while the sum is 27.

The square root of 3421881 is about 1849.8326951376. The cubic root of 3421881 is about 150.6913420789.

The spelling of 3421881 in words is "three million, four hundred twenty-one thousand, eight hundred eighty-one".