3960660694 has 16 divisors (see below), whose sum is σ = 6286088880. Its totient is φ = 1866378240.

The previous prime is 3960660673. The next prime is 3960660707. The reversal of 3960660694 is 4960660693.

It is a happy number.

3960660694 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262687 + ... + 277354.

It is an arithmetic number, because the mean of its divisors is an integer number (392880555).

Almost surely, 2^3960660694 is an apocalyptic number.

3960660694 is a deficient number, since it is larger than the sum of its proper divisors (2325428186).

3960660694 is a wasteful number, since it uses less digits than its factorization.

3960660694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540255.

The product of its (nonzero) digits is 1259712, while the sum is 49.

The square root of 3960660694 is about 62933.7802296986. The cubic root of 3960660694 is about 1582.1799602209.

Subtracting 3960660694 from its reverse (4960660693), we obtain a palindrome (999999999).

The spelling of 3960660694 in words is "three billion, nine hundred sixty million, six hundred sixty thousand, six hundred ninety-four".