3958543965 has 16 divisors (see below), whose sum is σ = 6335078400. Its totient is φ = 2110754112.

The previous prime is 3958543921. The next prime is 3958543987. The reversal of 3958543965 is 5693458593.

It is not a de Polignac number, because 3958543965 - 2⁸ = 3958543709 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46756 + ... + 100514.

It is an arithmetic number, because the mean of its divisors is an integer number (395942400).

Almost surely, 2^3958543965 is an apocalyptic number.

It is an amenable number.

3958543965 is a deficient number, since it is larger than the sum of its proper divisors (2376534435).

3958543965 is a wasteful number, since it uses less digits than its factorization.

3958543965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58676.

The product of its digits is 17496000, while the sum is 57.

The square root of 3958543965 is about 62916.9608690693. The cubic root of 3958543965 is about 1581.8980507736.

The spelling of 3958543965 in words is "three billion, nine hundred fifty-eight million, five hundred forty-three thousand, nine hundred sixty-five".