3447439109 has 4 divisors (see below), whose sum is σ = 3449599404. Its totient is φ = 3445278816.

The previous prime is 3447439087. The next prime is 3447439117. The reversal of 3447439109 is 9019347443.

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 742399009 + 2705040100 = 27247^2 + 52010^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3447439109 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3447439109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3447439139) 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, 1077752 + ... + 1080945.

It is an arithmetic number, because the mean of its divisors is an integer number (862399851).

Almost surely, 2^3447439109 is an apocalyptic number.

It is an amenable number.

3447439109 is a deficient number, since it is larger than the sum of its proper divisors (2160295).

3447439109 is a wasteful number, since it uses less digits than its factorization.

3447439109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2160294.

The product of its (nonzero) digits is 326592, while the sum is 44.

The square root of 3447439109 is about 58714.8968235490. The cubic root of 3447439109 is about 1510.6558426138.

The spelling of 3447439109 in words is "three billion, four hundred forty-seven million, four hundred thirty-nine thousand, one hundred nine".