3968887 has 8 divisors (see below), whose sum is σ = 4302704. Its totient is φ = 3639168.

The previous prime is 3968873. The next prime is 3968893. The reversal of 3968887 is 7888693.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-3968887 is a prime.

It is a Duffinian number.

3968887 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 3968887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3968807) 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, 1183 + ... + 3055.

It is an arithmetic number, because the mean of its divisors is an integer number (537838).

Almost surely, 2^3968887 is an apocalyptic number.

3968887 is a deficient number, since it is larger than the sum of its proper divisors (333817).

3968887 is a wasteful number, since it uses less digits than its factorization.

3968887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2049.

The product of its digits is 580608, while the sum is 49.

The square root of 3968887 is about 1992.2065655950. The cubic root of 3968887 is about 158.3274600468.

The spelling of 3968887 in words is "three million, nine hundred sixty-eight thousand, eight hundred eighty-seven".