3966588381 has 8 divisors (see below), whose sum is σ = 6044325184. Its totient is φ = 2266621920.

The previous prime is 3966588331. The next prime is 3966588383. The reversal of 3966588381 is 1838856693.

3966588381 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 3966588381 - 2⁷ = 3966588253 is a prime.

It is a super-2 number, since 2×3966588381² = 31467646768568402322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3966588383) 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, 94442560 + ... + 94442601.

It is an arithmetic number, because the mean of its divisors is an integer number (755540648).

Almost surely, 2^3966588381 is an apocalyptic number.

It is an amenable number.

3966588381 is a deficient number, since it is larger than the sum of its proper divisors (2077736803).

3966588381 is a wasteful number, since it uses less digits than its factorization.

3966588381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188885171.

The product of its digits is 7464960, while the sum is 57.

The square root of 3966588381 is about 62980.8572583765. The cubic root of 3966588381 is about 1582.9688852143.

The spelling of 3966588381 in words is "three billion, nine hundred sixty-six million, five hundred eighty-eight thousand, three hundred eighty-one".