3420347 has 18 divisors (see below), whose sum is σ = 4170348. Its totient is φ = 2796528.

The previous prime is 3420341. The next prime is 3420367. The reversal of 3420347 is 7430243.

It is a happy number.

3420347 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3420347 - 2¹⁸ = 3158203 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3420341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 41168 + ... + 41250.

It is an arithmetic number, because the mean of its divisors is an integer number (231686).

Almost surely, 2^3420347 is an apocalyptic number.

3420347 is a deficient number, since it is larger than the sum of its proper divisors (750001).

3420347 is an equidigital number, since it uses as much as digits as its factorization.

3420347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155 (or 119 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 23.

The square root of 3420347 is about 1849.4180165663. The cubic root of 3420347 is about 150.6688208331.

The spelling of 3420347 in words is "three million, four hundred twenty thousand, three hundred forty-seven".