3399921 has 16 divisors (see below), whose sum is σ = 5756800. Its totient is φ = 1942704.

The previous prime is 3399919. The next prime is 3399937. The reversal of 3399921 is 1299933.

It is not a de Polignac number, because 3399921 - 2¹ = 3399919 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3399901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8806 + ... + 9183.

It is an arithmetic number, because the mean of its divisors is an integer number (359800).

Almost surely, 2^3399921 is an apocalyptic number.

It is an amenable number.

3399921 is a deficient number, since it is larger than the sum of its proper divisors (2356879).

3399921 is a wasteful number, since it uses less digits than its factorization.

3399921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18005 (or 17999 counting only the distinct ones).

The product of its digits is 13122, while the sum is 36.

The square root of 3399921 is about 1843.8874694514. The cubic root of 3399921 is about 150.3682949853.

The spelling of 3399921 in words is "three million, three hundred ninety-nine thousand, nine hundred twenty-one".