3957887 has 8 divisors (see below), whose sum is σ = 4039200. Its totient is φ = 3877600.

The previous prime is 3957883. The next prime is 3957907. The reversal of 3957887 is 7887593.

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 3957887 - 2² = 3957883 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3957883) 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, 14918 + ... + 15180.

It is an arithmetic number, because the mean of its divisors is an integer number (504900).

Almost surely, 2^3957887 is an apocalyptic number.

3957887 is a deficient number, since it is larger than the sum of its proper divisors (81313).

3957887 is a wasteful number, since it uses less digits than its factorization.

3957887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513.

The product of its digits is 423360, while the sum is 47.

The square root of 3957887 is about 1989.4438921467. The cubic root of 3957887 is about 158.1810534660.

The spelling of 3957887 in words is "three million, nine hundred fifty-seven thousand, eight hundred eighty-seven".