3420555 has 16 divisors (see below), whose sum is σ = 5510400. Its totient is φ = 1811808.

The previous prime is 3420533. The next prime is 3420563. The reversal of 3420555 is 5550243.

It is not a de Polignac number, because 3420555 - 2⁵ = 3420523 is a prime.

It is a congruent number.

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, 1746 + ... + 3144.

It is an arithmetic number, because the mean of its divisors is an integer number (344400).

Almost surely, 2^3420555 is an apocalyptic number.

3420555 is a deficient number, since it is larger than the sum of its proper divisors (2089845).

3420555 is a wasteful number, since it uses less digits than its factorization.

3420555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1570.

The product of its (nonzero) digits is 3000, while the sum is 24.

The square root of 3420555 is about 1849.4742496180. The cubic root of 3420555 is about 150.6718749559.

Adding to 3420555 its reverse (5550243), we get a palindrome (8970798).

The spelling of 3420555 in words is "three million, four hundred twenty thousand, five hundred fifty-five".