3429845 has 4 divisors (see below), whose sum is σ = 4115820. Its totient is φ = 2743872.

The previous prime is 3429821. The next prime is 3429857. The reversal of 3429845 is 5489243.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5489243 = 67 ⋅81929.

It can be written as a sum of positive squares in 2 ways, for example, as 1745041 + 1684804 = 1321^2 + 1298^2 .

It is a cyclic number.

It is not a de Polignac number, because 3429845 - 2⁶ = 3429781 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 342980 + ... + 342989.

It is an arithmetic number, because the mean of its divisors is an integer number (1028955).

Almost surely, 2^3429845 is an apocalyptic number.

It is an amenable number.

3429845 is a deficient number, since it is larger than the sum of its proper divisors (685975).

3429845 is an equidigital number, since it uses as much as digits as its factorization.

3429845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685974.

The product of its digits is 34560, while the sum is 35.

The square root of 3429845 is about 1851.9840712058. The cubic root of 3429845 is about 150.8081565852.

It can be divided in two parts, 34298 and 45, that added together give a palindrome (34343).

The spelling of 3429845 in words is "three million, four hundred twenty-nine thousand, eight hundred forty-five".