3481405 has 4 divisors (see below), whose sum is σ = 4177692. Its totient is φ = 2785120.

The previous prime is 3481403. The next prime is 3481463. The reversal of 3481405 is 5041843.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5041843 = 17 ⋅296579.

It can be written as a sum of positive squares in 2 ways, for example, as 956484 + 2524921 = 978^2 + 1589^2 .

It is not a de Polignac number, because 3481405 - 2¹ = 3481403 is a prime.

It is a Duffinian number.

3481405 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 3481405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3481403) 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, 348136 + ... + 348145.

It is an arithmetic number, because the mean of its divisors is an integer number (1044423).

Almost surely, 2^3481405 is an apocalyptic number.

It is an amenable number.

3481405 is a deficient number, since it is larger than the sum of its proper divisors (696287).

3481405 is an equidigital number, since it uses as much as digits as its factorization.

3481405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696286.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 3481405 is about 1865.8523521437. The cubic root of 3481405 is about 151.5600882813.

The spelling of 3481405 in words is "three million, four hundred eighty-one thousand, four hundred five".