3447664072 has 16 divisors (see below), whose sum is σ = 6687279900. Its totient is φ = 1664389440.

The previous prime is 3447664067. The next prime is 3447664093. The reversal of 3447664072 is 2704667443.

It can be written as a sum of positive squares in 2 ways, for example, as 3283977636 + 163686436 = 57306^2 + 12794^2 .

It is an unprimeable number.

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, 7430079 + ... + 7430542.

Almost surely, 2^3447664072 is an apocalyptic number.

It is an amenable number.

3447664072 is a deficient number, since it is larger than the sum of its proper divisors (3239615828).

3447664072 is a wasteful number, since it uses less digits than its factorization.

3447664072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14860656 (or 14860652 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 43.

The square root of 3447664072 is about 58716.8125156671. The cubic root of 3447664072 is about 1510.6887012341.

The spelling of 3447664072 in words is "three billion, four hundred forty-seven million, six hundred sixty-four thousand, seventy-two".