3217901649 has 16 divisors (see below), whose sum is σ = 4447348224. Its totient is φ = 2067436800.

The previous prime is 3217901611. The next prime is 3217901651. The reversal of 3217901649 is 9461097123.

It is not a de Polignac number, because 3217901649 - 2¹⁵ = 3217868881 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3217901649.

It is not an unprimeable number, because it can be changed into a prime (3217901669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49374 + ... + 94199.

It is an arithmetic number, because the mean of its divisors is an integer number (277959264).

Almost surely, 2^3217901649 is an apocalyptic number.

It is an amenable number.

3217901649 is a deficient number, since it is larger than the sum of its proper divisors (1229446575).

3217901649 is a wasteful number, since it uses less digits than its factorization.

3217901649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143848.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 3217901649 is about 56726.5515345328. The cubic root of 3217901649 is about 1476.3554177289.

The spelling of 3217901649 in words is "three billion, two hundred seventeen million, nine hundred one thousand, six hundred forty-nine".