3920080647 has 16 divisors (see below), whose sum is σ = 6233172480. Its totient is φ = 2142652512.

The previous prime is 3920080639. The next prime is 3920080657. The reversal of 3920080647 is 7460800293.

It is not a de Polignac number, because 3920080647 - 2³ = 3920080639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3920080657) 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 15 ways as a sum of consecutive naturals, for example, 4057572 + ... + 4058537.

It is an arithmetic number, because the mean of its divisors is an integer number (389573280).

Almost surely, 2^3920080647 is an apocalyptic number.

3920080647 is a deficient number, since it is larger than the sum of its proper divisors (2313091833).

3920080647 is a wasteful number, since it uses less digits than its factorization.

3920080647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8116142.

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 3920080647 is about 62610.5474101609. The cubic root of 3920080647 is about 1576.7578454651.

The spelling of 3920080647 in words is "three billion, nine hundred twenty million, eighty thousand, six hundred forty-seven".