3481021 has 4 divisors (see below), whose sum is σ = 3593344. Its totient is φ = 3368700.

The previous prime is 3481019. The next prime is 3481043. The reversal of 3481021 is 1201843.

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.

It is a cyclic number.

It is not a de Polignac number, because 3481021 - 2¹ = 3481019 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3481021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3481001) 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, 56115 + ... + 56176.

It is an arithmetic number, because the mean of its divisors is an integer number (898336).

Almost surely, 2^3481021 is an apocalyptic number.

3481021 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3481021 is a deficient number, since it is larger than the sum of its proper divisors (112323).

3481021 is a wasteful number, since it uses less digits than its factorization.

3481021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112322.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 3481021 is about 1865.7494472731. The cubic root of 3481021 is about 151.5545157023.

Adding to 3481021 its reverse (1201843), we get a palindrome (4682864).

It can be divided in two parts, 348 and 1021, that added together give a square (1369 = 37²).

The spelling of 3481021 in words is "three million, four hundred eighty-one thousand, twenty-one".