3961706788 has 72 divisors (see below), whose sum is σ = 7791308448. Its totient is φ = 1760548608.

The previous prime is 3961706767. The next prime is 3961706789. The reversal of 3961706788 is 8876071693.

It is not an unprimeable number, because it can be changed into a prime (3961706789) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2121031 + ... + 2122897.

Almost surely, 2^3961706788 is an apocalyptic number.

It is an amenable number.

3961706788 is a deficient number, since it is larger than the sum of its proper divisors (3829601660).

3961706788 is a wasteful number, since it uses less digits than its factorization.

3961706788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2013 (or 1998 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 55.

The square root of 3961706788 is about 62942.0907501491. The cubic root of 3961706788 is about 1582.3192436550.

The spelling of 3961706788 in words is "three billion, nine hundred sixty-one million, seven hundred six thousand, seven hundred eighty-eight".