3499581 has 4 divisors (see below), whose sum is σ = 4666112. Its totient is φ = 2333052.

The previous prime is 3499577. The next prime is 3499583. The reversal of 3499581 is 1859943.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1859943 = 3 ⋅619981.

It is not a de Polignac number, because 3499581 - 2² = 3499577 is a prime.

It is a super-2 number, since 2×3499581² = 24494134351122, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3499583) 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 3 ways as a sum of consecutive naturals, for example, 583261 + ... + 583266.

It is an arithmetic number, because the mean of its divisors is an integer number (1166528).

Almost surely, 2^3499581 is an apocalyptic number.

It is an amenable number.

3499581 is a deficient number, since it is larger than the sum of its proper divisors (1166531).

3499581 is a wasteful number, since it uses less digits than its factorization.

3499581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1166530.

The product of its digits is 38880, while the sum is 39.

The square root of 3499581 is about 1870.7167075749. The cubic root of 3499581 is about 151.8233896340.

The spelling of 3499581 in words is "three million, four hundred ninety-nine thousand, five hundred eighty-one".