3421749 has 8 divisors (see below), whose sum is σ = 4709632. Its totient is φ = 2207520.

The previous prime is 3421711. The next prime is 3421751. The reversal of 3421749 is 9471243.

It is a happy number.

3421749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 3421749 - 2⁹ = 3421237 is a prime.

It is a super-5 number, since 5×3421749⁵ (a number of 34 digits) contains 55555 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3421799) 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 7 ways as a sum of consecutive naturals, for example, 18304 + ... + 18489.

It is an arithmetic number, because the mean of its divisors is an integer number (588704).

Almost surely, 2^3421749 is an apocalyptic number.

It is an amenable number.

3421749 is a deficient number, since it is larger than the sum of its proper divisors (1287883).

3421749 is a wasteful number, since it uses less digits than its factorization.

3421749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36827.

The product of its digits is 6048, while the sum is 30.

The square root of 3421749 is about 1849.7970158912. The cubic root of 3421749 is about 150.6894044007.

The spelling of 3421749 in words is "three million, four hundred twenty-one thousand, seven hundred forty-nine".