3420709 has 4 divisors (see below), whose sum is σ = 3468960. Its totient is φ = 3372460.

The previous prime is 3420701. The next prime is 3420713. The reversal of 3420709 is 9070243.

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 3420709 - 2³ = 3420701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3420701) 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, 24019 + ... + 24160.

It is an arithmetic number, because the mean of its divisors is an integer number (867240).

Almost surely, 2^3420709 is an apocalyptic number.

It is an amenable number.

3420709 is a deficient number, since it is larger than the sum of its proper divisors (48251).

3420709 is an equidigital number, since it uses as much as digits as its factorization.

3420709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48250.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 3420709 is about 1849.5158826028. The cubic root of 3420709 is about 150.6741361017.

The spelling of 3420709 in words is "three million, four hundred twenty thousand, seven hundred nine".