3420965 has 8 divisors (see below), whose sum is σ = 4143480. Its totient is φ = 2711232.

The previous prime is 3420959. The next prime is 3420973. The reversal of 3420965 is 5690243.

It can be written as a sum of positive squares in 4 ways, for example, as 1555009 + 1865956 = 1247^2 + 1366^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3420965 is a prime.

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, 2594 + ... + 3683.

It is an arithmetic number, because the mean of its divisors is an integer number (517935).

Almost surely, 2^3420965 is an apocalyptic number.

It is an amenable number.

3420965 is a deficient number, since it is larger than the sum of its proper divisors (722515).

3420965 is a wasteful number, since it uses less digits than its factorization.

3420965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6391.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 3420965 is about 1849.5850886077. The cubic root of 3420965 is about 150.6778947393.

The spelling of 3420965 in words is "three million, four hundred twenty thousand, nine hundred sixty-five".