3487839 has 8 divisors (see below), whose sum is σ = 4924080. Its totient is φ = 2188416.

The previous prime is 3487831. The next prime is 3487843. The reversal of 3487839 is 9387843.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3487839 - 2³ = 3487831 is a prime.

3487839 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 3487839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3487831) 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 7 ways as a sum of consecutive naturals, for example, 34144 + ... + 34245.

It is an arithmetic number, because the mean of its divisors is an integer number (615510).

Almost surely, 2^3487839 is an apocalyptic number.

3487839 is a deficient number, since it is larger than the sum of its proper divisors (1436241).

3487839 is a wasteful number, since it uses less digits than its factorization.

3487839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68409.

The product of its digits is 145152, while the sum is 42.

The square root of 3487839 is about 1867.5757012769. The cubic root of 3487839 is about 151.6533971136.

The spelling of 3487839 in words is "three million, four hundred eighty-seven thousand, eight hundred thirty-nine".