3397421 has 8 divisors (see below), whose sum is σ = 3484800. Its totient is φ = 3311280.

The previous prime is 3397411. The next prime is 3397423. The reversal of 3397421 is 1247933.

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

It is a cyclic number.

It is not a de Polignac number, because 3397421 - 2¹⁰ = 3396397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3397423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7520 + ... + 7958.

It is an arithmetic number, because the mean of its divisors is an integer number (435600).

Almost surely, 2^3397421 is an apocalyptic number.

It is an amenable number.

3397421 is a deficient number, since it is larger than the sum of its proper divisors (87379).

3397421 is a wasteful number, since it uses less digits than its factorization.

3397421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619.

The product of its digits is 4536, while the sum is 29.

The square root of 3397421 is about 1843.2094292294. The cubic root of 3397421 is about 150.3314301175.

The spelling of 3397421 in words is "three million, three hundred ninety-seven thousand, four hundred twenty-one".