3964688917 has 16 divisors (see below), whose sum is σ = 4731955200. Its totient is φ = 3247885872.

The previous prime is 3964688899. The next prime is 3964688927. The reversal of 3964688917 is 7198864693.

It is a de Polignac number, because none of the positive numbers 2^k-3964688917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3964688927) 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, 200334 + ... + 219232.

It is an arithmetic number, because the mean of its divisors is an integer number (295747200).

Almost surely, 2^3964688917 is an apocalyptic number.

It is an amenable number.

3964688917 is a deficient number, since it is larger than the sum of its proper divisors (767266283).

3964688917 is a wasteful number, since it uses less digits than its factorization.

3964688917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20232.

The product of its digits is 15676416, while the sum is 61.

The square root of 3964688917 is about 62965.7757595346. The cubic root of 3964688917 is about 1582.7161682529.

The spelling of 3964688917 in words is "three billion, nine hundred sixty-four million, six hundred eighty-eight thousand, nine hundred seventeen".