3488943221 has 4 divisors (see below), whose sum is σ = 3490750092. Its totient is φ = 3487136352.

The previous prime is 3488943217. The next prime is 3488943247. The reversal of 3488943221 is 1223498843.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1269496900 + 2219446321 = 35630^2 + 47111^2 .

It is a cyclic number.

It is not a de Polignac number, because 3488943221 - 2² = 3488943217 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3488943721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 900536 + ... + 904401.

It is an arithmetic number, because the mean of its divisors is an integer number (872687523).

Almost surely, 2^3488943221 is an apocalyptic number.

It is an amenable number.

3488943221 is a deficient number, since it is larger than the sum of its proper divisors (1806871).

3488943221 is a wasteful number, since it uses less digits than its factorization.

3488943221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1806870.

The product of its digits is 331776, while the sum is 44.

The square root of 3488943221 is about 59067.2770745359. The cubic root of 3488943221 is about 1516.6939949563.

The spelling of 3488943221 in words is "three billion, four hundred eighty-eight million, nine hundred forty-three thousand, two hundred twenty-one".