3945609696 has 96 divisors (see below), whose sum is σ = 12533149440. Its totient is φ = 1061001216.

The previous prime is 3945609683. The next prime is 3945609739. The reversal of 3945609696 is 6969065493.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

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, 161266 + ... + 184113.

It is an arithmetic number, because the mean of its divisors is an integer number (130553640).

Almost surely, 2^3945609696 is an apocalyptic number.

It is an amenable number.

3945609696 is an abundant number, since it is smaller than the sum of its proper divisors (8587539744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3945609696 is a wasteful number, since it uses less digits than its factorization.

3945609696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345416 (or 345408 counting only the distinct ones).

The product of its (nonzero) digits is 9447840, while the sum is 57.

The square root of 3945609696 is about 62814.0883560368. The cubic root of 3945609696 is about 1580.1732566509.

The spelling of 3945609696 in words is "three billion, nine hundred forty-five million, six hundred nine thousand, six hundred ninety-six".