3447738 has 48 divisors (see below), whose sum is σ = 8919360. Its totient is φ = 984312.

The previous prime is 3447733. The next prime is 3447739. The reversal of 3447738 is 8377443.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3447733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1995 + ... + 3297.

It is an arithmetic number, because the mean of its divisors is an integer number (185820).

Almost surely, 2^3447738 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3447738, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4459680).

3447738 is an abundant number, since it is smaller than the sum of its proper divisors (5471622).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3447738 is a wasteful number, since it uses less digits than its factorization.

3447738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1328 (or 1315 counting only the distinct ones).

The product of its digits is 56448, while the sum is 36.

The square root of 3447738 is about 1856.8085523284. The cubic root of 3447738 is about 151.0699499018.

The spelling of 3447738 in words is "three million, four hundred forty-seven thousand, seven hundred thirty-eight".