3406621 has 4 divisors (see below), whose sum is σ = 3516544. Its totient is φ = 3296700.

The previous prime is 3406619. The next prime is 3406631. The reversal of 3406621 is 1266043.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3406621 - 2¹ = 3406619 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3406592 and 3406601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3406631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54915 + ... + 54976.

It is an arithmetic number, because the mean of its divisors is an integer number (879136).

Almost surely, 2^3406621 is an apocalyptic number.

3406621 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3406621 is a deficient number, since it is larger than the sum of its proper divisors (109923).

3406621 is a wasteful number, since it uses less digits than its factorization.

3406621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109922.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 3406621 is about 1845.7033889550. The cubic root of 3406621 is about 150.4670038000.

The spelling of 3406621 in words is "three million, four hundred six thousand, six hundred twenty-one".