3487689 has 12 divisors (see below), whose sum is σ = 5067972. Its totient is φ = 2311200.

The previous prime is 3487661. The next prime is 3487691. The reversal of 3487689 is 9867843.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1550025 + 1937664 = 1245^2 + 1392^2 .

It is not a de Polignac number, because 3487689 - 2¹¹ = 3485641 is a prime.

It is an Ulam number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3487639) 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, 559 + ... + 2699.

It is an arithmetic number, because the mean of its divisors is an integer number (422331).

Almost surely, 2^3487689 is an apocalyptic number.

It is an amenable number.

3487689 is a deficient number, since it is larger than the sum of its proper divisors (1580283).

3487689 is a wasteful number, since it uses less digits than its factorization.

3487689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2328 (or 2325 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 3487689 is about 1867.5355418305. The cubic root of 3487689 is about 151.6512230515.

The spelling of 3487689 in words is "three million, four hundred eighty-seven thousand, six hundred eighty-nine".