3459781 has 4 divisors (see below), whose sum is σ = 3725932. Its totient is φ = 3193632.

The previous prime is 3459779. The next prime is 3459791. The reversal of 3459781 is 1879543.

3459781 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1846881 + 1612900 = 1359^2 + 1270^2 .

It is not a de Polignac number, because 3459781 - 2¹ = 3459779 is a prime.

It is a super-2 number, since 2×3459781² = 23940169135922, which contains 22 as substring.

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 3459781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3459751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133056 + ... + 133081.

It is an arithmetic number, because the mean of its divisors is an integer number (931483).

Almost surely, 2^3459781 is an apocalyptic number.

It is an amenable number.

3459781 is a deficient number, since it is larger than the sum of its proper divisors (266151).

3459781 is a wasteful number, since it uses less digits than its factorization.

3459781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266150.

The product of its digits is 30240, while the sum is 37.

The square root of 3459781 is about 1860.0486552776. The cubic root of 3459781 is about 151.2456420209.

The spelling of 3459781 in words is "three million, four hundred fifty-nine thousand, seven hundred eighty-one".