3421616 has 20 divisors (see below), whose sum is σ = 7232424. Its totient is φ = 1555200.

The previous prime is 3421603. The next prime is 3421631. The reversal of 3421616 is 6161243.

It is a happy number.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 3421591 and 3421600.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9545 + ... + 9896.

Almost surely, 2^3421616 is an apocalyptic number.

It is an amenable number.

3421616 is an abundant number, since it is smaller than the sum of its proper divisors (3810808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3421616 is a wasteful number, since it uses less digits than its factorization.

3421616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19460 (or 19454 counting only the distinct ones).

The product of its digits is 864, while the sum is 23.

The square root of 3421616 is about 1849.7610656515. The cubic root of 3421616 is about 150.6874519927.

Adding to 3421616 its reverse (6161243), we get a palindrome (9582859).

The spelling of 3421616 in words is "three million, four hundred twenty-one thousand, six hundred sixteen".