3421705 has 16 divisors (see below), whose sum is σ = 4775040. Its totient is φ = 2305152.

The previous prime is 3421699. The next prime is 3421711. The reversal of 3421705 is 5071243.

It is an interprime number because it is at equal distance from previous prime (3421699) and next prime (3421711).

It is a cyclic number.

It is not a de Polignac number, because 3421705 - 2⁹ = 3421193 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1237 + ... + 2893.

It is an arithmetic number, because the mean of its divisors is an integer number (298440).

Almost surely, 2^3421705 is an apocalyptic number.

3421705 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3421705 is a deficient number, since it is larger than the sum of its proper divisors (1353335).

3421705 is a wasteful number, since it uses less digits than its factorization.

3421705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1728.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 3421705 is about 1849.7851226561. The cubic root of 3421705 is about 150.6887584969.

Adding to 3421705 its reverse (5071243), we get a palindrome (8492948).

The spelling of 3421705 in words is "three million, four hundred twenty-one thousand, seven hundred five".