3958978735 has 16 divisors (see below), whose sum is σ = 4790834496. Its totient is φ = 3140529408.

The previous prime is 3958978733. The next prime is 3958978741. The reversal of 3958978735 is 5378798593.

It is a cyclic number.

It is not a de Polignac number, because 3958978735 - 2¹ = 3958978733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3958978733) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 725437 + ... + 730873.

It is an arithmetic number, because the mean of its divisors is an integer number (299427156).

Almost surely, 2^3958978735 is an apocalyptic number.

3958978735 is a deficient number, since it is larger than the sum of its proper divisors (831855761).

3958978735 is a wasteful number, since it uses less digits than its factorization.

3958978735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6642.

The product of its digits is 57153600, while the sum is 64.

The square root of 3958978735 is about 62920.4158838767. The cubic root of 3958978735 is about 1581.9559623562.

The spelling of 3958978735 in words is "three billion, nine hundred fifty-eight million, nine hundred seventy-eight thousand, seven hundred thirty-five".