3966232387 has 16 divisors (see below), whose sum is σ = 4501728000. Its totient is φ = 3464131104.

The previous prime is 3966232363. The next prime is 3966232399. The reversal of 3966232387 is 7832326693.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3966232387 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3966232387.

It is not an unprimeable number, because it can be changed into a prime (3966232187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 197664 + ... + 216802.

It is an arithmetic number, because the mean of its divisors is an integer number (281358000).

Almost surely, 2^3966232387 is an apocalyptic number.

3966232387 is a deficient number, since it is larger than the sum of its proper divisors (535495613).

3966232387 is a wasteful number, since it uses less digits than its factorization.

3966232387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20010.

The product of its digits is 1959552, while the sum is 49.

The square root of 3966232387 is about 62978.0309870037. The cubic root of 3966232387 is about 1582.9215276171.

The spelling of 3966232387 in words is "three billion, nine hundred sixty-six million, two hundred thirty-two thousand, three hundred eighty-seven".