3964664693 has 8 divisors (see below), whose sum is σ = 4331046720. Its totient is φ = 3599275680.

The previous prime is 3964664681. The next prime is 3964664719.

It is a happy number.

3964664693 is nontrivially palindromic in base 10.

3964664693 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 3964664693 - 2⁴ = 3964664677 is a prime.

It is a super-2 number, since 2×3964664693² = 31437132255841568498, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3964664603) 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, 239888 + ... + 255881.

It is an arithmetic number, because the mean of its divisors is an integer number (541380840).

Almost surely, 2^3964664693 is an apocalyptic number.

It is an amenable number.

3964664693 is a deficient number, since it is larger than the sum of its proper divisors (366382027).

3964664693 is a wasteful number, since it uses less digits than its factorization.

3964664693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496507.

The product of its digits is 15116544, while the sum is 56.

The square root of 3964664693 is about 62965.5834007754. The cubic root of 3964664693 is about 1582.7129448142.

The spelling of 3964664693 in words is "three billion, nine hundred sixty-four million, six hundred sixty-four thousand, six hundred ninety-three".