3964175661 has 8 divisors (see below), whose sum is σ = 5398026624. Its totient is φ = 2586554240.

The previous prime is 3964175653. The next prime is 3964175717. The reversal of 3964175661 is 1665714693.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3964175661 - 2³ = 3964175653 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3964175661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3964175641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14057220 + ... + 14057501.

It is an arithmetic number, because the mean of its divisors is an integer number (674753328).

Almost surely, 2^3964175661 is an apocalyptic number.

It is an amenable number.

3964175661 is a deficient number, since it is larger than the sum of its proper divisors (1433850963).

3964175661 is a wasteful number, since it uses less digits than its factorization.

3964175661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28114771.

The product of its digits is 816480, while the sum is 48.

The square root of 3964175661 is about 62961.6999532255. The cubic root of 3964175661 is about 1582.6478675074.

The spelling of 3964175661 in words is "three billion, nine hundred sixty-four million, one hundred seventy-five thousand, six hundred sixty-one".