3973947755 has 16 divisors (see below), whose sum is σ = 5142160800. Its totient is φ = 2938371840.

The previous prime is 3973947743. The next prime is 3973947781. The reversal of 3973947755 is 5577493793.

It is not a de Polignac number, because 3973947755 - 2⁴ = 3973947739 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3973947694 and 3973947703.

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 15 ways as a sum of consecutive naturals, for example, 506240 + ... + 514029.

It is an arithmetic number, because the mean of its divisors is an integer number (321385050).

Almost surely, 2^3973947755 is an apocalyptic number.

3973947755 is a deficient number, since it is larger than the sum of its proper divisors (1168213045).

3973947755 is a wasteful number, since it uses less digits than its factorization.

3973947755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020334.

The product of its digits is 25004700, while the sum is 59.

The square root of 3973947755 is about 63039.2556666082. The cubic root of 3973947755 is about 1583.9472627400.

The spelling of 3973947755 in words is "three billion, nine hundred seventy-three million, nine hundred forty-seven thousand, seven hundred fifty-five".