3447889 has 4 divisors (see below), whose sum is σ = 3650724. Its totient is φ = 3245056.

The previous prime is 3447883. The next prime is 3447893. The reversal of 3447889 is 9887443.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9887443 = 773 ⋅12791.

It can be written as a sum of positive squares in 2 ways, for example, as 2007889 + 1440000 = 1417^2 + 1200^2 .

It is a cyclic number.

It is not a de Polignac number, because 3447889 - 2⁹ = 3447377 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (3447883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101392 + ... + 101425.

It is an arithmetic number, because the mean of its divisors is an integer number (912681).

Almost surely, 2^3447889 is an apocalyptic number.

It is an amenable number.

3447889 is a deficient number, since it is larger than the sum of its proper divisors (202835).

3447889 is a wasteful number, since it uses less digits than its factorization.

3447889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202834.

The product of its digits is 193536, while the sum is 43.

The square root of 3447889 is about 1856.8492130488. The cubic root of 3447889 is about 151.0721553313.

The spelling of 3447889 in words is "three million, four hundred forty-seven thousand, eight hundred eighty-nine".