3973855557 has 12 divisors (see below), whose sum is σ = 6163531296. Its totient is φ = 2270774520.

The previous prime is 3973855531. The next prime is 3973855597. The reversal of 3973855557 is 7555583793.

It is not a de Polignac number, because 3973855557 - 2¹¹ = 3973853509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3973855497 and 3973855506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3973855597) 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 11 ways as a sum of consecutive naturals, for example, 13516369 + ... + 13516662.

It is an arithmetic number, because the mean of its divisors is an integer number (513627608).

Almost surely, 2^3973855557 is an apocalyptic number.

It is an amenable number.

3973855557 is a deficient number, since it is larger than the sum of its proper divisors (2189675739).

3973855557 is a wasteful number, since it uses less digits than its factorization.

3973855557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27033048 (or 27033041 counting only the distinct ones).

The product of its digits is 19845000, while the sum is 57.

The square root of 3973855557 is about 63038.5243878694. The cubic root of 3973855557 is about 1583.9350131326.

The spelling of 3973855557 in words is "three billion, nine hundred seventy-three million, eight hundred fifty-five thousand, five hundred fifty-seven".