3421646 has 16 divisors (see below), whose sum is σ = 5287680. Its totient is φ = 1659960.

The previous prime is 3421637. The next prime is 3421657. The reversal of 3421646 is 6461243.

It is a super-2 number, since 2×3421646² = 23415322698632, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12491 + ... + 12761.

It is an arithmetic number, because the mean of its divisors is an integer number (330480).

Almost surely, 2^3421646 is an apocalyptic number.

3421646 is a deficient number, since it is larger than the sum of its proper divisors (1866034).

3421646 is a wasteful number, since it uses less digits than its factorization.

3421646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439.

The product of its digits is 3456, while the sum is 26.

The square root of 3421646 is about 1849.7691747891. The cubic root of 3421646 is about 150.6878923899.

Adding to 3421646 its reverse (6461243), we get a palindrome (9882889).

The spelling of 3421646 in words is "three million, four hundred twenty-one thousand, six hundred forty-six".