3421121 has 8 divisors (see below), whose sum is σ = 3928800. Its totient is φ = 2946240.

The previous prime is 3421109. The next prime is 3421151. The reversal of 3421121 is 1211243.

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

It is a de Polignac number, because none of the positive numbers 2^k-3421121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3421096 and 3421105.

It is not an unprimeable number, because it can be changed into a prime (3421151) 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, 7976 + ... + 8393.

It is an arithmetic number, because the mean of its divisors is an integer number (491100).

Almost surely, 2^3421121 is an apocalyptic number.

It is an amenable number.

3421121 is a deficient number, since it is larger than the sum of its proper divisors (507679).

3421121 is a wasteful number, since it uses less digits than its factorization.

3421121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16399.

The product of its digits is 48, while the sum is 14.

The square root of 3421121 is about 1849.6272597472. The cubic root of 3421121 is about 150.6801850672.

Adding to 3421121 its reverse (1211243), we get a palindrome (4632364).

It can be divided in two parts, 3 and 421121, that added together give a palindrome (421124).

The spelling of 3421121 in words is "three million, four hundred twenty-one thousand, one hundred twenty-one".