3900728973207 has 32 divisors (see below), whose sum is σ = 5763206663424. Its totient is φ = 2326878259200.

The previous prime is 3900728973179. The next prime is 3900728973221. The reversal of 3900728973207 is 7023798270093.

3900728973207 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3900728973207 - 2¹⁰ = 3900728972183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3900728973287) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1965957 + ... + 3415617.

It is an arithmetic number, because the mean of its divisors is an integer number (180100208232).

Almost surely, 2^{3900728973207} is an apocalyptic number.

3900728973207 is a deficient number, since it is larger than the sum of its proper divisors (1862477690217).

3900728973207 is a wasteful number, since it uses less digits than its factorization.

3900728973207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1450959.

The product of its (nonzero) digits is 8001504, while the sum is 57.

The spelling of 3900728973207 in words is "three trillion, nine hundred billion, seven hundred twenty-eight million, nine hundred seventy-three thousand, two hundred seven".