3485581 has 12 divisors (see below), whose sum is σ = 3981600. Its totient is φ = 3025880.

The previous prime is 3485579. The next prime is 3485593. The reversal of 3485581 is 1855843.

3485581 = T₅₃₉ + T₅₄₀ + ... + T₅₆₁.

It is not a de Polignac number, because 3485581 - 2¹ = 3485579 is a prime.

It is a super-2 number, since 2×3485581² = 24298549815122, which contains 22 as substring.

It is a Duffinian number.

3485581 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3485381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5520 + ... + 6118.

It is an arithmetic number, because the mean of its divisors is an integer number (331800).

Almost surely, 2^3485581 is an apocalyptic number.

It is an amenable number.

3485581 is a deficient number, since it is larger than the sum of its proper divisors (496019).

3485581 is a wasteful number, since it uses less digits than its factorization.

3485581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656 (or 633 counting only the distinct ones).

The product of its digits is 19200, while the sum is 34.

The square root of 3485581 is about 1866.9710763694. The cubic root of 3485581 is about 151.6206636365.

It can be divided in two parts, 348 and 5581, that added together give a square (5929 = 77²).

The spelling of 3485581 in words is "three million, four hundred eighty-five thousand, five hundred eighty-one".