3421604 has 6 divisors (see below), whose sum is σ = 5987814. Its totient is φ = 1710800.

The previous prime is 3421603. The next prime is 3421631. The reversal of 3421604 is 4061243.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2856100 + 565504 = 1690^2 + 752^2 .

It is not an unprimeable number, because it can be changed into a prime (3421603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427697 + ... + 427704.

It is an arithmetic number, because the mean of its divisors is an integer number (997969).

Almost surely, 2^3421604 is an apocalyptic number.

It is an amenable number.

3421604 is a deficient number, since it is larger than the sum of its proper divisors (2566210).

3421604 is a wasteful number, since it uses less digits than its factorization.

3421604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855405 (or 855403 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 3421604 is about 1849.7578219864. The cubic root of 3421604 is about 150.6872758331.

Adding to 3421604 its reverse (4061243), we get a palindrome (7482847).

The spelling of 3421604 in words is "three million, four hundred twenty-one thousand, six hundred four".